Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing...

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Collaborative Testing Services, Inc. Containerboard Interlaboratory Testing Program Participant Summary Report #468 (K)- September 2008 Introduction to the Containerboard Program Explanation of Tables and Definitions of Terms Instrument Manufacturer Contacts Analysis Sample Lot Analysis Name 201 Box Compression Strength , Corrugated Boxes BOX1 202 Edgewise Compressive Strength of Fiberboard , Corrugated board ECT2 205 Mullen Burst of Linerboard , 42 lb Linerboard 42X1 206 Mullen Burst of Linerboard , 69 lb Linerboard 69Y1 215 Ring Crush of Linerboard, Rigid Platen Type , 42 lb Linerboard 42X1 216 Ring Crush of Linerboard, Rigid Platen Type , 69 lb Linerboard 69Y1 223 STFI of Linerboard , 42 lb Linerboard 42X1 224 STFI of Linerboard , 69 lb Linerboard 69Y1 228 Roughness - Stylus Method , 42 lb Linerboard 42X 231 Internal Bond Strength, Linerboard , 42 lb Linerboard 42W3 234 Coefficient of Static Friction - Inclined Plane , 42 lb Linerboard 42W3 237 Air Resistance - Gurley Method, Linerboard , 42 lb linerboard 42W3 240 Flat Crush Strength (CMT) of Medium , 26 lb Corrugating Medium CM71 250 Fluted Crush of Medium , 26 lb Corrugating Medium CM71 255 Ring Crush of Medium , 26 lb Corrugating Medium CM71 261 STFI of Medium , 26 lb Corrugating Medium CM71 ABOUT CTS Founded in 1971, Collaborative Testing Services, Inc. (CTS) is a privately-owned company that specializes in interlaboratory tests for a wide variety of industries, including rubber, plastics, fasteners and metals, containerboard, paper, color, and wine, as well as proficiency tests for forensic laboratories. All of the tests are designed to assist organizations in achieving and maintaining quality control objectives. Labs from the U.S., as well as more than 50 countries, currently participate in the CTS programs. For further information, contact: Collaborative Testing Services, Inc 21331 Gentry Drive Sterling, VA 20166 USA Voice: 571-434-1925 Fax: 571-434-1937 [email protected]

Transcript of Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing...

Page 1: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Collaborative Testing Services, Inc.Containerboard Interlaboratory Testing Program

Participant Summary Report #468 (K)- September 2008

Introduction to the Containerboard Program

Explanation of Tables and Definitions of Terms

Instrument Manufacturer Contacts

Analysis Sample Lot Analysis Name

201 Box Compression Strength, Corrugated BoxesBOX1

202 Edgewise Compressive Strength of Fiberboard, Corrugated boardECT2

205 Mullen Burst of Linerboard, 42 lb Linerboard42X1

206 Mullen Burst of Linerboard, 69 lb Linerboard69Y1

215 Ring Crush of Linerboard, Rigid Platen Type, 42 lb Linerboard42X1

216 Ring Crush of Linerboard, Rigid Platen Type, 69 lb Linerboard69Y1

223 STFI of Linerboard, 42 lb Linerboard42X1

224 STFI of Linerboard, 69 lb Linerboard69Y1

228 Roughness - Stylus Method, 42 lb Linerboard42X

231 Internal Bond Strength, Linerboard, 42 lb Linerboard42W3

234 Coefficient of Static Friction - Inclined Plane, 42 lb Linerboard42W3

237 Air Resistance - Gurley Method, Linerboard, 42 lb linerboard42W3

240 Flat Crush Strength (CMT) of Medium, 26 lb Corrugating MediumCM71

250 Fluted Crush of Medium, 26 lb Corrugating MediumCM71

255 Ring Crush of Medium, 26 lb Corrugating MediumCM71

261 STFI of Medium, 26 lb Corrugating MediumCM71

ABOUT CTSFounded in 1971, Collaborative Testing Services, Inc. (CTS) is a privately-owned company that specializes in interlaboratory tests for a wide variety of industries, including rubber, plastics, fasteners and metals, containerboard, paper, color, and wine, as well as proficiency tests for forensic laboratories. All of the tests are designed to assist organizations in achieving and maintaining quality

control objectives. Labs from the U.S., as well as more than 50 countries, currently participate in the CTS programs.

For further information, contact:Collaborative Testing Services, Inc

21331 Gentry DriveSterling, VA 20166 USA

Voice: 571-434-1925Fax: 571-434-1937

[email protected]

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Collaborative Testing Services, Inc.CONTAINERBOARD INTERLABORATORY TESTING PROGRAM

INTRODUCTION

The Interlaboratory Testing Program for Containerboard is operated and maintained by Collaborative Testing Services, Inc. (CTS), with technical guidance provided by the Containerboard Group of the American Forest & Paper Association. The tests are conducted on a monthly basis.

For these tests samples of linerboard and corrugating medium, that each have been separately randomized from narrow rolls, are distributed for testing weekly. One weight of medium (26 lb.) is used for Concora Flat Crush Strength, Corrugtaed Fluted Crush Strength, Ring Crush Strength, and STFI Compression. Two weights of linerboard are tested each month for Mullen Burst, Ring Crush, and STFI Compression: 42 lb. - every month; 36 lb. and 69 lb. - alternate months. The participants return their test results for analysis and receive a monthly report.

Please refer to the section, "EXPLANATION OF TABLES", for definitions of terms and guidelines to interpreting the results.

USE OF AVERAGE MEAN AS A COLLABORATIVE REFERENCE VALUE

The samples of linerboard and corrugating medium, which have been randomized and placed in sealed packages for distribution in this program, may be used as collaborative reference materials. The values most representative of each material are the Cumulative Grand Means in the latest reports, given at the bottom right of each table. Comparisons can only be made within one lot of material; therefore check your measurements against the Cumulative Grand Means with the same lot code as on the packages being tested.

Material Lot Code Dates in Use

36# Linerboard 36U2 October 2006 -

42# Linerboard 42W3 April 2007 - February 2008 42# Linerboard 42X1 March 2008 -

69# Linerboard 69V4 January 2007 - May 2008 69# Linerboard 69Y July 2008 -

Corrugating Medium CM71 July 2007 -

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EXPLANATION OF TABLES

Each analysis is divided into three time spans. On the left side of the table are the individual laboratory results for each week of the month; in the center are each lab's statistical data for the month; and on the right are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants for each of the three time spans.

Definitions of Terms Used

Weekly Results

Laboratory Data WebCode - A six character laboratory identifier used to maintain information on a confidential basis. The WebCode is unique for each analysis and will change for each report. Your WebCode can be found in your Individual Report (Current Month Performance Report) and your datasheet. Weekly Means - The average of the test results obtained by the participant for each week that data were reported.Consensus Data Wk Mean - For each week, the average of the Means for all the participants, excluding those laboratories flagged with an 'X'. Avg SDr - For each week, the average of the within-laboratory standard deviations (SDr's) for all the participants, excluding those laboratories flagged with an 'X'. The Avg SDr is an indication of the variation of measurements within an average laboratory. SD btwn Labs - For each week, the standard deviation of the laboratory Means about the Wk Mean, excluding those laboratories flagged with an 'X'. The SD LABS is an indication of the precision of measurement between the laboratories. Labs Incl - The number of laboratory Means included in the Wk Mean for that week. Labs Excld - The number of laboratory Means reported but excluded from the Wk Mean for that week because of outlying results ('X' following Mean). Labs not rcvd - The number of laboratories failing to report for that week.

Monthly Results

Laboratory Data Mean - For each laboratory, the average of all the weekly Means reported for this month. CPV - Comparative Performance Value, an indication of how well a laboratory's Mean agrees with the other participants. The CPV is a ratio indicating the number of standard deviations from the consensus mean (Monthly Mean). The closer a laboratory's CPV is to zero, the more consistent its results are with the other participants' data. SDr - For each laboratory, the average of the weekly within-lab standard deviations (SDr's) for all reported Weekly Means this month. SD Wks - The standard deviation among the laboratory's weekly Means, including those Means flagged with an 'X'. The SD Wks is an indication of that laboratory's ability to obtain constant results from week to week.Consensus Data Month Mean - The average of the Means for all the participants, excluding those laboratories flagged with an 'X,' reporting data for this month. Avg SDr - For the current month, the average of the within-laboratory standard deviations (SDr's) for all the participants, excluding those laboratories flagged with an 'X'. SD btwn Labs - For the current month, the standard deviation of the laboratory Means about the Month Mean, excluding those laboratories flagged with an 'X'. SD Wks - For the current month, the average of the laboratory between week standard deviations (SD Wks') for all the participants. Labs Incl - The number of laboratory Means included in the Month Mean.

continued on next page

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Cumulative Results

Laboratory Data Mean - For each lab, the average of all the monthly Means reported for the weeks shown. CPV - Comparative Performance Value, an indication of how well a laboratory's cumulative mean agrees with the other participants. The CPV is a ratio indicating the number of standard deviations from the consensus mean (Monthly Mean). SDr - For each laboratory, the average of the weekly within-lab standard deviations (SDr's) for the weeks shown. SD Wks- The standard deviation among the laboratory's weekly Means for the weeks shown, including those Means flagged with an 'X'. The SD Wks is an indication of that laboratory's ability to obtain constant results from week to week. Wks - The number of weeks included in the cumulative period.Consensus Data Grand Mean - The average of the Means for all the participants, excluding those laboratories flagged with an 'X,' reporting data for the number of weeks included in the cumulative period. Avg SDr - For the cumulative period, the average of the within-laboratory standard deviations (SDr's) for all the participants, excluding those laboratories flagged with an 'X'. SD btwn Labs - For the cumulative period, the standard deviation of the laboratory Means about the Month Mean, excluding those laboratories flagged with an 'X'. SD Wks - For the cumulative period, the average of the laboratory between week standard deviations for all the participants. Labs Incl - The number of laboratory Means included in the Grand Mean.

Any laboratory that receives a 'flag' following a mean or standard deviation should refer to the chart below for an explanation of the data flag symbol:

Flag Explanation

Data Flags " X " and " * " indicate a laboratory's performance on an average value differed from the consensus.Data Flags " H " and " L " indicate a laboratory's performance on a standard deviation differed from the consensus.

Flags assigned to Weekly Means, Monthly Mean and Cumulative Mean: X Excluded from the weekly means, monthly means and/or the cumulative mean. Immediate review of data and/or testing procedure is required. * Included in the weekly means, monthly means and/or the cumulative mean; however, lab should review testing procedure and monitor future results.

Flags assigned to Weekly Means: H Indicates high within-laboratory standard deviation. The laboratory SDr for each week is not shown, but laboratory average SDr and consensus average SDr values are shown. L Indicates low within-laboratory standard deviation. The laboratory SDr for each week is not shown, but laboratory monthly average SDr and consensus average SDr values are shown.

Flags assigned to Monthly SD Wks and Cumulative SD Wks: H Indicates high variabilty between weekly means (high week-to-week variation). L Indicates low variabilty between weekly means (low week-to-week variation).

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INSTRUMENT MANUFACTURER CONTACTS

If your data results have been flagged with an "X" and you believe that the problem may be with your instrument (and not your testing procedures), then CTS urges you to contact the appropriate instrument manufacturer. Where

possible, CTS has asked the manufacturer to supply a contact person who is familiar with the Containerboard Collaborative Reference Program, and who can thus work with you on evaluating your results to better determine

the cause of the problem. Additional contact names will be added as they become available.

Emerson ApparatusConnie Upson

59 Sanford St., #12Gorham Maine, ME 04038

Phone: (207) 856-0055, Ext. 24FAX #: (207) 856-1117

[email protected]

Lorentzen & Wettre USA Inc.Bill Crain, Technical Manager1055 Windward Ridge Pkwy

Suite 160Alpharetta, GA 30202

Phone: (770) 442-8015FAX #: (770) 442-6792

Testing Machines Inc.2910 Expressway Drive South

Islandia, NY 11722Phone: (631) 439-5400FAX #: (631) 439-5420

[email protected]

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Containerboard Interlaboratory Testing ProgramAnalysis 201

Report #468 September 2008

Top to Bottom Box Compression Strength, Corrugated Boxes - BOX1TAPPI Official Test Method T804

WebCode Mean SDrMonthly Results

CPV

Cumulative ResultsMean SDr MonthsCPV Inst

1,020.9 809.2 437.9 39.3 TR3BKXSQ685.6 697.3 225.1 29.3-0.06 0.87 LL41E6T8671.6 689.1 476.2 57.5-0.18 0.70 LN5V666W652.8 653.2 429.8 40.9-0.35 -0.03 ER6YK5VA611.8 631.0 459.4 55.7-0.71 -0.49 XX84VWJF

961.2 * 723.7 448.9 41.72.40 1.41 ERB4MCMT956.0 * 719.7 480.6 49.42.35 1.33 ESCSSHQQ660.6 657.0 415.1 49.5-0.28 0.04 LGERVEV7647.0 658.7 465.6 46.8-0.40 0.08 XXFFE19C669.0 650.6 447.9 49.8-0.20 -0.09 LGG5XPPZ

630.3 666.2 442.2 44.5-0.55 0.23 LHGJTAM2576.0 565.0 448.1 36.8-1.03 -1.84 LHGZ4KY4644.2 627.0 453.5 46.0-0.42 -0.57 ERHBDPJ3603.6 602.0 421.4 28.1-0.79 -1.08 TSML3WC3860.8 737.0 4100.5 62.51.51 1.68 XXMNPHVC

584.9 579.5 443.1 35.6-0.95 -1.54 LOQM7NT9655.8 614.5 4148.5 86.6-0.32 -0.82 MCT42ZEE647.6 600.2 426.9 34.5-0.39 -1.12 XXVMTSCH707.9 724.5 459.4 62.20.14 1.42 LMWPN51E638.5 653.6 420.9 44.2-0.48 -0.02 LOXR99BX

833.7 679.4 469.6 58.01.26 0.50 TBZN7V6W628.9 621.9 426.6 32.8-0.56 -0.67 LGZQAS9Z

Consensus (All Labs) Results

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

691.80 654.81

112.23 48.93

61.04 49.09

21 21

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

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Containerboard Interlaboratory Testing ProgramAnalysis 201

Report #468 September 2008

Top to Bottom Box Compression Strength, Corrugated Boxes - BOX1TAPPI Official Test Method T804

Instrument Code List as Reported by the Labs

(ER) - Emerson 6200 Series (ES) - Emerson 8510

(LG) - TLS / L.A.B. Validator Series (LH) - L.A.B. Compression Tester Model #10610

(LL) - Lansmont 76-5K (LM) - Lansmont 122-15k

(LN) - Lansmont 152-50k (LO) - Lansmont 152-30k

(MC) - MTI Lab Model 10240 (TB) - TMI Monitor/Compression Tester, Model 17-70

(TR) - Toyo Seiki Model RCT-5TU (TS) - Tinus Olsen Model CTM

(XX) - Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 202

Report #468 September 2008

Edgewise Compressive Strength, Corrugated board - ECT2TAPPI T811, T838 and T839

WebCode Mean SDrMonthly Results

CPV

Cumulative ResultsMean SDr MonthsCPV Inst

54.6 56.4 42.6 2.4-1.38 -1.30 EM1SFDZK50.4 * 49.3 47.9 7.0-2.35 -3.54X LC2WAS5K60.1 62.2 42.0 1.8-0.08 0.53 TC3EGL4R62.5 62.2 42.1 1.70.48 0.52 EM48WW8N59.1 58.1 42.2 1.5-0.31 -0.77 TL4G4KVU

53.5 52.9 43.2 3.2-1.64 -2.40* WK4S466Z59.8 59.1 41.9 1.9-0.14 -0.47 EN4VSH5556.9 56.9 41.9 2.4-0.82 -1.16 TB7YMF9S62.4 62.7 41.7 1.70.46 0.66 EM8JXXK243.0 X 45.5 41.5 1.5-4.11 -4.72X CT8YXE1G

63.9 62.2 43.2 2.40.81 0.50 TA9LRLCP64.5 62.6 42.1 1.70.96 0.63 TDBCQ6F259.7 58.4 41.5 2.0-0.17 -0.67 LXBNY21R63.7 63.7 41.1 0.90.78 0.97 TCBR7Y5962.9 63.5 43.7 3.10.58 0.92 TDBUCJUU

59.2 59.3 42.3 2.2-0.29 -0.38 LXCJXCWP59.7 62.9 43.3 3.3-0.17 0.75 TMDSGSZC62.0 57.7 41.4 1.80.38 -0.90 TCE49DYF55.2 58.9 41.4 2.2-1.22 -0.53 LCFD9FG657.7 60.1 45.2 3.3-0.65 -0.15 LXG4NM31

67.2 66.1 43.6 2.51.60 1.74 LCGFTUK664.0 62.3 21.6 1.30.83 0.54 TCGH5GDR63.9 64.7 31.2 1.40.81 1.30 LDHGD76F55.8 55.9 42.8 2.7-1.08 -1.47 TCK7QVCF52.6 60.1 41.3 1.7-1.83 -0.13 LCKGWPT2

62.4 61.6 43.5 3.20.46 0.32 LCN5RNUZ68.3 65.6 41.5 1.71.86 1.60 LCNR5E1U55.3 56.0 31.5 1.4-1.21 -1.43 TDQZBVMK59.6 58.1 42.5 2.6-0.19 -0.78 XXSNWLH456.2 56.2 33.0 2.7-1.00 -1.36 ENTETTEA

65.6 65.9 41.9 3.61.22 1.68 EMTFQBFR63.0 60.1 41.9 1.50.60 -0.15 LCV8A55J61.6 63.1 42.9 3.20.27 0.80 EMVLQ94L65.9 60.6 42.8 3.81.28 0.01 ENX3HWH962.7 60.2 41.6 1.80.54 -0.10 LXX86LU6

63.4 63.4 44.0 2.60.71 0.89 LCXHN6BQ

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Containerboard Interlaboratory Testing ProgramAnalysis 202

Report #468 September 2008

Edgewise Compressive Strength, Corrugated board - ECT2TAPPI T811, T838 and T839

WebCode Mean SDrMonthly Results

CPV

Cumulative ResultsMean SDr MonthsCPV Inst

60.1 59.9 23.8 3.2-0.09 -0.20 EMXYSQRD

Consensus (All Labs) Results

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

60.42 60.55

4.25 3.18

2.86 2.41

36 35

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

ECT Results by Methodology (as reported by laboratory)

Test Methodology Group Mean Btwn Lab STD Labs includedSample ECT2

TAPPI T811 Wax Edge (1) 59.70 4.33 4

TAPPI T828 Neckdown (2) 60.53 1.89 3

TAPPI T839 Clamp (3) 60.87 4.13 28

ECT Results in pounds force / inch.

Instrument Code List as Reported by the Labs

(CT) - Con-Ten (EM) - Emerson 1200 Series

(EN) - Emerson 2200 (LC) - L&W Crush Tester 48

(LD) - L&W Crush Tester 248 (LX) - L&W 506

(TA) - Thwing-Albert (model not specified) (TB) - TMI Monitor/Compression Tester, Model 17-70

(TC) - TMI Monitor/Compression Tester, Model 17-37 (TD) - TMI Digital Crush Tester, Model 17-09

(TL) - Tech-Lab Systems Compression (TM) - TMI/Hinde & Dausch

(WK) - Zwick Z005 Crush Tester (XX) - Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 205

Report #468 September 2008

Bursting Strength (Mullen), 42 lb Linerboard - 42X1TAPPI Official Test Method T807

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

102.9 103.5 102.9 102.8 103.0 105.2 16L7.3 0.3 6.5 4.40.05 0.86 TX11Q42N

93.9 95.6 96.2 100.0 96.4 98.1 87.2 2.6 8.5 3.4-1.87 -1.43 AX16H2VL

103.6 110.2 104.3 106.0 106.0 106.0 167.9 3.0 8.1 2.40.92 1.12 LZ1R3Z49

100.0 104.3 100.9 110.3 103.9 104.6 1511.7 4.7 10.5 4.50.30 0.68 AA26FQVV

101.5 101.7 100.3 106.5 102.5 103.4 168.5 2.7 9.9 5.1-0.10 0.29 TB2KDPLY

107.8 101.3 102.3 97.9 102.3 102.0 1610.9 4.1 11.1 3.1-0.15 -0.18 AH2NSMFD

93.9 100.4 102.5 98.9 99.4 1312.2 4.5 10.8 3.2-1.14 -0.99 TB No Data2ZWDX7

104.8 99.6 99.4 98.0 100.5 101.2 169.6 3.0 10.1 4.3-0.70 -0.43 AH34GX3G

102.9 102.9 106.9 11L11.3 0.0 9.3 4.70.02 1.42 TB No Data No Data No Data4BUGNS

100.6 101.7 98.2 97.2 99.4 99.2 1410.2 2.1 9.6 3.4-1.00 -1.06 LA4MN865

99.7 101.3 100.5 103.6 101.3 99.0 1611.8 1.7 11.4 3.2-0.46H -1.12 LJ4VBCMK

101.6 101.0 103.4 101.4 101.8 103.0 158.5 1.1 11.0 2.0-0.29 0.18 LA4XMYSD

97.2 107.4 97.3 110.9 103.2 105.6 1610.4 7.0 11.6 6.70.10 1.02 H LC51T4E5

97.6 101.5 104.0 96.0 99.8 99.5 1611.7 3.6 10.1 3.5-0.89 -0.96 LA5F413C

100.8 102.9 105.5 102.9 103.0 101.7 1610.5 1.9 10.3 4.30.05 -0.27 LA6AJXN8

107.4 107.4 106.3 4L11.6 0.0 10.0 2.81.33 1.21 AX No Data No Data No Data6CFQY5

111.9 107.1 106.9 104.2 107.5 104.0 1614.0 3.2 12.0 4.81.36*H 0.47 LZ7WBF75

110.3 107.8 105.2 108.4 107.9 106.9 168.7 2.1 9.5 2.21.47 1.43 TB9DA8YX

58.5 87.5 97.8 96.5 85.1 X 91.3 15H9.3 18.3 8.0 9.7-5.18X X -3.60X H LAA2TRXD

96.0 96.4 94.0 102.1 97.1 98.0 169.8 3.5 9.8 4.0-1.66 -1.47 LZAKFK51

102.0 110.5 106.3 103.9 1412.3 6.0 10.2 2.91.00 0.45 TB No Data No DataC42ETN

95.0 103.0 108.6 103.4 102.5 100.7 1610.0 5.6 10.0 3.8-0.10 -0.59 AHD2H98G

99.3 95.3 103.5 98.0 99.0 99.1 167.7 3.4 7.7 3.7-1.11 -1.10 AHDG8E6X

101.0 101.4 98.4 100.9 100.4 100.2 166.1 1.4 6.4 1.9-0.70 -0.75 AHDK8EHN

101.8 101.6 103.4 102.9 102.4 102.0 169.2 0.9 8.8 1.9-0.12 -0.18 TBFAWZPK

105.5 94.6 107.0 100.7 102.0 104.4 1311.8 5.6 10.9 3.7-0.26 0.60 TXFFBJ31

101.4 102.7 104.2 106.7 103.8 103.1 1611.5 2.3 10.7 2.60.27H 0.19 LZG4FUMR

108.5 108.5 107.9 8L8.8 0.0 9.3 2.71.65 1.73 TB No Data No Data No DataGCZCNX

103.1 104.6 107.7 112.3 106.9 105.9 155.3 4.1 4.6 2.61.19*L 1.09 XXHP2RYB

102.4 109.1 111.5 102.7 106.4 104.9 1613.0 4.6 10.8 4.21.04 0.78 LAJV35LB

101.6 98.6 106.0 100.7 101.7 102.3 168.1 3.1 10.2 3.9-0.32 -0.07 TBKGMYB2

98.1 104.7 98.5 95.4 99.2 101.1 169.9 3.9 10.7 3.4-1.07 -0.44 LCLRVM4T

98.5 103.8 102.8 102.8 101.9 100.9 169.3 2.3 10.7 4.2-0.26 -0.52 AAMUFQNY

104.7 103.3 104.2 100.9 103.3 102.8 157.7 1.7 9.8 3.40.13L 0.11 LZN6UMNE

102.5 99.7 103.4 94.8 100.1 98.9 1610.3 3.8 10.9 4.3-0.80 -1.16 AXN83QKB

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Containerboard Interlaboratory Testing ProgramAnalysis 205

Report #468 September 2008

Bursting Strength (Mullen), 42 lb Linerboard - 42X1TAPPI Official Test Method T807

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

103.6 105.2 98.0 98.4 101.3 103.0 1610.6 3.6 10.2 4.1-0.45 0.15 AHNDNYGM

105.8 103.2 104.7 104.8 104.6 104.5 166.1 1.1 7.2 3.40.52 0.65 AHNW12ZM

96.8 102.1 97.9 101.4 99.5 99.6 158.1 2.6 9.3 3.3-0.97 -0.93 TCP2T3YL

107.2 104.4 105.8 104.4 147.8 2.0 9.2 2.30.85 0.61 LB No Data No DataPGBNML

101.6 108.6 101.0 102.0 103.3 103.1 1610.5 3.6 10.8 2.90.14 0.21 LJQV3DUW

108.3 106.5 108.0 107.1 107.4 104.6 158.1 0.8 9.8 4.31.34L 0.68 LZQVPFMB

102.0 104.3 111.2 108.5 106.5 105.1 169.6 4.1 10.3 2.91.07 0.84 AHR81U2W

108.0 106.9 102.4 104.4 105.4 104.1 166.5 2.5 7.5 1.80.75L 0.52 LARFJAPC

97.8 99.4 98.8 92.8 97.2 98.0 165.7 3.0 7.8 2.9-1.64* -1.44 LARSSVTD

98.5 91.7 96.9 95.8 95.7 * 95.8 1613.1 2.9 10.5 6.6-2.08*H H -2.17* H LAT3SL4H

96.8 94.3 93.6 102.4 96.8 97.5 1611.0 4.0 10.4 2.9-1.77* -1.60 XXU4GPEK

75.7 77.3 95.8 96.4 86.3 X 92.1 15H8.6 11.4 8.9 6.7-4.82X X -3.35X H LJULUFW2

119.0 95.5 108.5 112.3 108.8 112.1 16H11.5 9.9 11.6 5.91.74X * 3.09X TBUP1VKL

94.3 103.4 106.7 98.8 100.8 103.1 168.8 5.4 10.3 3.5-0.59L 0.20 AHV1UDX6

99.8 103.8 104.4 104.1 103.0 102.3 1413.3 2.2 11.1 4.00.05 -0.08 LAV5AUB4

100.7 104.4 104.5 103.2 98.6 99.5 2.2 10.2 5.50.10 -1.26 TB No DataV737D2

109.6 97.7 103.9 106.4 104.4 100.0 1611.1 5.0 10.8 5.10.45H -0.79 AHVL1XWE

100.5 100.8 100.7 100.5 100.6 100.7 16L5.8 0.2 5.7 1.0-0.65 -0.57 AHVP5VHL

98.6 105.1 98.2 102.5 101.1 100.4 1612.7 3.3 11.4 4.1-0.51 -0.68 TBVQ9EP2

105.6 100.6 101.1 108.7 104.0 105.1 169.4 3.9 11.4 3.80.34 0.83 XXVZGZBH

104.7 106.3 99.5 108.3 104.7 104.7 1610.6 3.8 10.2 4.20.54 0.72 LCW9YYFE

111.4 104.8 108.0 102.2 106.6 108.5 1612.8 4.0 11.1 6.21.09* 1.95 H AHWHEFDU

108.0 108.7 107.1 109.4 108.3 105.6 1410.1 1.0 10.6 3.11.59 0.99 LAXHEBFG

95.5 94.8 95.8 100.0 96.5 97.0 1611.0 2.4 11.8 4.0-1.84 -1.78 XXYEY2CR

107.6 109.1 111.8 108.3 109.2 109.3 167.2 1.8 9.8 5.51.85* 2.19* AXZFTU7N

103.9 103.7 103.0 103.4 103.5 102.0 16L7.9 0.4 8.7 1.70.19 -0.17 AHZU3YTF

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

102.20

4.44

9.86

55

3

3

102.34

4.55

9.91

54

5

2

102.60

4.44

9.62

57

4

0

102.76

4.52

10.11

58

0

3

102.84 102.50

3.43 3.10

9.94 9.90

3.58 3.81

59 58

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Page 12: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 205

Report #468 September 2008

Bursting Strength (Mullen), 42 lb Linerboard - 42X1TAPPI Official Test Method T807

Instrument Code List as Reported by the Labs

(AA) - Perkins Model A (AH) - Perkins Model AH

(AX) - Perkins Mullen Tester (model not specified) (LA) - L & W Bursting Strength Tester

(LB) - L & W Burst-O-Matic (LC) - L & W Autoline

(LJ) - L & W Bursting Strength Tester J-Type (LZ) - L & W (model not specified)

(TB) - TMI Monitor/Burst 1000 (TC) - TMI Monitor/Burst (Model 13-71)

(TX) - TMI Monitor/Burst (model not specified) (XX) - Instrument make/model not specified by lab

Page 13: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 206

Report #468 September 2008

Bursting Strength (Mullen), 69 lb Linerboard - 69Y1TAPPI Official Test Method T807

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

154.2 158.2 161.9 166.5 160.2 159.7 821.5 5.2 20.5 3.6-0.10 -0.18 LA14MNYE

160.8 141.8 153.1 151.9 145.7 614.2 9.6 14.3 13.0-1.37* -2.57* H TB No Data14X329

151.7 157.8 157.5 157.9 156.2 157.2 813.1 3.0 13.6 2.7-0.71 -0.61 AH1D669Y

176.2 176.2 * 174.3 5L13.1 0.0 14.5 5.02.35* 2.32* TB No Data No Data No Data1RGN6V

164.9 176.4 173.0 169.1 170.8 170.7 824.4 5.0 24.2 4.41.53* 1.72 LA1RQCZ2

159.2 158.7 160.0 164.8 160.7 154.9 89.1 2.8 9.2 6.5-0.02L L L -1.01 AH2H84VC

161.5 163.8 162.6 161.9 622.4 1.6 22.3 1.90.27 0.20 TB No Data No Data2NNRRV

166.0 160.6 158.0 161.5 160.4 718.1 4.1 21.8 3.50.11 -0.05 LC No Data2TRYVC

156.1 154.8 157.7 159.6 157.1 159.3 821.3 2.1 21.8 3.9-0.58 -0.25 AH4HUQ27

160.4 160.4 160.4 1L16.3 0.0 16.3 0.0-0.07 -0.06 L AX No Data No Data No Data5GGE27

160.7 153.0 157.2 157.1 157.0 159.8 811.0 3.1 16.8 3.8-0.59L -0.15 LA6UUU4Y

153.6 147.1 159.7 149.8 152.6 160.2 816.0 5.5 18.7 9.2-1.27 -0.10 TB7HQ67T

171.1 172.6 166.6 169.8 170.0 170.6 723.0 2.6 22.1 2.41.41 1.69 LA7TJJA6

162.3 173.8 163.4 167.8 166.8 166.3 828.6 5.2 27.1 6.50.92H 0.95 XX7WEZXG

178.5 176.6 176.6 173.7 176.4 * 175.3 821.8 2.0 23.2 6.82.38* * * * 2.50* AH94SPWD

158.4 161.6 155.8 162.4 159.6 158.4 822.0 3.0 21.0 3.0-0.20 -0.41 AHA7SDC6

155.8 157.8 158.3 162.5 158.6 158.8 818.1 2.8 19.6 4.3-0.35 -0.34 AAAJCW3X

115.6 150.1 157.6 150.8 143.5 * 147.3 8H17.2 18.9 17.0 13.0-2.65X -2.31* H LAATZHCM

162.4 162.1 162.9 161.0 162.1 155.0 8L13.1 0.8 10.5 7.60.19L L -0.98 AHAVBXY6

167.6 163.4 166.3 165.9 165.8 162.9 719.9 1.8 20.0 4.40.76 0.38 AABFR7JK

158.0 156.2 166.6 154.2 158.8 162.8 819.6 5.5 19.9 6.8-0.32 0.36 AHC6JYCJ

157.0 149.9 154.4 157.8 154.8 155.3 821.8 3.6 20.7 3.2-0.93 -0.94 XXCK71W9

159.7 158.5 158.9 157.5 158.7 158.9 7L17.4 0.9 17.3 1.2-0.33 -0.31 LZCTZQXP

148.6 158.2 150.6 152.0 152.4 158.0 818.6 4.1 20.1 9.7-1.30 -0.46 LZDTZXWW

158.8 163.4 160.0 161.2 160.9 160.9 416.6 2.0 16.6 2.00.00 0.02 AXDW8YBF

147.6 145.8 157.0 152.4 150.7 154.4 714.5 5.0 14.4 6.6-1.55* -1.08 XXE2XVDC

154.4 153.0 161.2 165.6 158.6 153.7 811.5 5.9 10.1 9.5-0.35L L -1.21 AHE7RXLW

165.2 163.6 161.8 165.2 164.0 165.2 813.6 1.6 15.7 2.50.48L 0.77 TBF22UVJ

162.6 164.4 153.3 163.4 160.9 157.8 820.1 5.2 19.4 5.00.01 -0.51 TXFE1GF2

157.1 159.2 161.0 161.3 159.6 159.8 822.7 1.9 20.8 2.9-0.18 -0.16 LJFEPQS5

157.4 151.5 152.4 156.1 154.3 153.8 815.9 2.9 17.2 2.4-1.00 -1.19 TCFF3N6S

163.7 170.9 153.5 162.7 156.6 719.3 8.7 18.9 8.30.29 -0.71 TB No DataGDVT2F

127.0 135.1 145.8 146.2 138.5 X 142.3 817.3 9.2 19.6 7.7-3.42X X * -3.16X LJGES7NC

175.4 164.7 163.0 162.8 166.5 167.0 824.0 6.0 21.7 5.30.86* 1.08 TBGQHQJY

160.7 160.3 159.1 162.9 160.7 161.1 819.0 1.6 21.1 3.6-0.01 0.07 LAJA4SYY

Page 14: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 206

Report #468 September 2008

Bursting Strength (Mullen), 69 lb Linerboard - 69Y1TAPPI Official Test Method T807

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

184.7 174.0 165.2 182.6 176.6 * 169.5 834.9 8.9 28.5 9.92.42XH XH 1.51 H LCJC2AUS

152.4 161.8 165.0 151.7 157.7 158.2 816.9 6.7 14.7 4.8-0.48 -0.43 TBJLUR7N

173.0 132.5 159.3 169.7 158.6 159.8 8H13.4 18.4 13.9 12.5-0.34XL -0.16 H AHK8AV7P

159.0 160.1 154.9 157.4 157.9 157.9 719.3 2.2 18.7 2.8-0.45 -0.49 LZL9MY9E

152.9 157.4 156.2 150.9 154.4 158.9 815.2 3.0 17.0 8.5-0.99 -0.31 LALFBHPG

174.6 174.6 173.0 172.2 173.6 170.4 813.4 1.2 16.6 5.61.95* 1.67 AXMELFWZ

163.5 171.3 162.0 159.6 164.1 162.7 824.9 5.1 21.9 5.80.50 0.34 AHMZAH4L

156.1 153.1 153.1 157.6 155.0 158.1 816.5 2.2 18.1 5.2-0.90 -0.45 LCMZY6WN

157.9 158.0 156.4 164.7 159.3 157.2 824.6 3.7 22.0 3.9-0.24 -0.61 TBN1ZBAB

171.0 165.3 173.6 161.0 167.7 167.4 817.7 5.7 17.5 5.11.05 1.15 TXN6HQR2

158.4 157.7 149.7 152.8 154.7 155.2 820.4 4.1 19.1 6.7-0.95 -0.95 LAP2BA7J

155.1 158.3 156.7 159.1 613.4 2.2 14.2 2.8-0.63 -0.29 LB No Data No DataQ71L2K

162.1 167.8 161.3 160.8 163.0 159.9 816.4 3.2 16.2 4.60.33 -0.14 LZRD94CK

162.5 161.9 160.4 166.4 162.8 161.8 821.5 2.6 21.1 4.50.30 0.19 LARR3HS8

160.2 146.2 149.7 159.4 153.9 158.5 828.5 7.0 28.0 6.9-1.07H -0.39 AXSBQXV7

160.0 167.7 168.0 162.4 164.5 163.6 821.4 4.0 22.0 3.30.56 0.50 LJUC6R6U

170.5 164.8 162.0 164.9 165.6 163.5 825.0 3.6 24.1 4.70.72H 0.48 LAVNNFVR

165.6 171.6 168.8 168.4 168.6 164.6 820.4 2.5 19.0 6.21.19 0.66 LZVPT35B

170.3 170.3 174.7 4L20.0 0.0 22.3 6.81.45 2.40* TB No Data No Data No DataVUSWKK

166.7 164.0 158.4 161.8 162.7 161.8 820.8 3.5 20.4 4.20.29 0.19 AHWY8LJN

155.9 159.0 158.7 163.8 159.4 162.8 824.0 3.3 21.1 5.4-0.23 0.36 TBY26GLM

155.3 163.6 165.0 164.6 162.1 163.4 820.4 4.6 21.1 3.80.20 0.46 LZYCC3HF

142.5 159.1 167.1 163.9 158.1 159.5 815.7 11.0 15.8 7.5-0.41*L -0.21 AHYDC3K1

161.8 161.5 143.8 163.2 157.6 158.1 816.3 9.2 17.3 6.3-0.50* -0.46 AHYT1LXP

150.6 155.2 151.4 152.5 152.4 153.1 818.4 2.0 18.2 2.0-1.29 -1.31 LAZVU24A

159.5 158.9 156.8 163.8 159.8 159.7 815.8 2.9 18.1 3.0-0.17 -0.18 LAZZ4WRD

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

160.22

7.10

19.65

54

4

3

161.07

7.44

19.55

54

5

2

160.05

7.25

19.30

57

4

0

160.88

6.38

18.90

57

1

3

160.84 160.73

6.53 5.82

19.47 19.31

5.71 6.02

60 60

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Page 15: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 206

Report #468 September 2008

Bursting Strength (Mullen), 69 lb Linerboard - 69Y1TAPPI Official Test Method T807

Instrument Code List as Reported by the Labs

(AA) - Perkins Model A (AH) - Perkins Model AH

(AX) - Perkins Mullen Tester (model not specified) (LA) - L & W Bursting Strength Tester

(LB) - L & W Burst-O-Matic (LC) - L & W Autoline

(LJ) - L & W Bursting Strength Tester J-Type (LZ) - L & W (model not specified)

(TB) - TMI Monitor/Burst 1000 (TC) - TMI Monitor/Burst (Model 13-71)

(TX) - TMI Monitor/Burst (model not specified) (XX) - Instrument make/model not specified by lab

Page 16: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 215

Report #468 September 2008

Ring Crush, 42 lb Linerboard - 42X1TAPPI Official Test Method T822

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

93.3 94.8 96.6 99.5 96.0 93.7 165.1 2.7 4.2 2.71.10 0.74 LZ1JRSTM

81.4 85.4 82.9 103.9 88.4 82.4 15H3.4 10.5 3.5 7.4-0.60* * -1.88 H LC2BG2AZ

89.8 86.5 83.9 97.4 89.4 92.3 88.9 5.9 7.0 5.0-0.37H H H H 0.42 LZ2QQTAS

93.3 93.3 88.0 11L3.2 0.0 3.0 2.20.49 -0.58 TC No Data No Data No Data3DMT9S

93.7 96.1 95.1 94.7 94.9 93.3 163.2 1.0 4.1 2.40.84 0.65 LC41LGLY

87.7 90.5 89.4 87.6 88.8 90.0 163.5 1.4 3.4 1.8-0.51L -0.12 LZ4FFRMJ

96.2 91.3 94.6 92.2 93.6 94.4 164.0 2.2 4.0 1.80.55 0.91 LC536LX3

87.6 87.9 87.6 93.5 89.1 88.8 163.1 2.9 3.9 1.9-0.43 -0.38 EN5MCYL6

93.3 92.3 91.1 98.1 93.7 89.9 163.6 3.1 4.0 3.40.58L -0.13 LD6UCKAX

95.8 97.8 98.6 97.4 93.9 124.4 1.4 4.4 3.21.40 0.80 LC No Data6ZKBD4

86.4 78.3 90.0 86.0 85.2 80.4 163.3 4.9 3.6 4.7-1.31* -2.35* LC76LSHG

99.2 103.2 98.0 99.4 100.0 100.4 164.8 2.3 4.7 2.31.96* * 2.31* LZ7EQVBT

93.0 90.8 91.8 92.7 92.1 92.3 164.4 1.0 3.9 2.20.21 0.42 LC7G4T69

87.8 85.6 82.3 89.1 86.2 87.2 163.8 3.0 3.9 2.5-1.08 -0.76 TM8E24VT

93.7 90.4 88.4 90.8 89.9 93.7 2.7 4.1 2.6-0.06 -0.13 LD No Data8S5DAN

95.5 91.7 97.4 96.7 95.3 94.7 154.7 2.5 4.2 2.40.94L 0.99 LC9G62NL

94.7 88.1 84.3 89.0 86.6 154.3 5.3 4.3 7.5-0.46 -0.89 H LC No Data9NCK6Z

89.6 87.1 97.5 95.6 92.5 90.0 164.2 4.9 3.8 3.50.30 -0.12 LCA96XF2

85.6 88.6 87.1 86.8 87.0 84.6 163.5 1.2 4.0 2.1-0.90 -1.35 LDB6TBP8

91.9 93.0 91.9 89.0 91.5 91.4 166.6 1.7 5.4 4.60.08H 0.20 LCCC4W16

90.3 88.5 88.7 88.1 88.9 89.4 164.0 1.0 3.9 1.9-0.48 -0.24 LCCKGVE3

91.6 94.5 92.7 90.6 92.3 92.2 163.4 1.7 4.7 2.60.28 0.41 EMD8D9CW

80.2 102.3 94.2 90.3 91.8 92.3 16H6.5 9.2 5.9 6.50.15* *H 0.43 H LCDR2DAQ

86.7 85.0 81.7 83.7 84.3 84.2 164.0 2.1 4.1 1.6-1.51 -1.45 EME5Y656

93.4 90.7 93.2 94.2 92.9 93.0 166.4 1.5 5.0 2.00.39H 0.60 LDE9QDNE

88.3 86.4 84.9 77.4 84.2 82.1 83.0 4.8 3.5 4.7-1.51* -1.94 LDEM56HT

94.0 96.7 95.5 94.1 95.1 95.0 73.6 1.3 3.7 0.90.88 1.04 LCET232C

91.8 109.4 96.4 97.1 98.7 97.4 15H3.7 7.5 4.3 4.11.68X 1.60 LCF9GVVT

92.4 92.9 91.7 90.9 92.0 90.1 163.7 0.9 4.0 2.30.20 -0.09 LCFF83NE

82.0 83.5 80.2 81.6 81.8 * 86.2 163.6 1.4 4.5 3.7-2.05*L *L -0.98 TDGSP1FQ

83.9 87.9 87.3 84.3 85.9 84.1 164.1 2.0 4.1 2.2-1.16L -1.48 LZGTQ2ZU

90.8 90.8 91.7 4L4.2 0.0 3.7 0.9-0.06 0.29 EX No Data No Data No DataH86E9S

90.2 97.0 92.7 92.0 93.0 90.1 154.5 2.9 3.8 4.70.42 -0.08 XXHF7L5A

89.2 89.5 90.5 88.3 89.4 90.0 166.2 0.9 6.4 1.1-0.38 -0.12 LCHH3N9W

86.1 88.0 84.8 87.5 86.6 88.5 164.5 1.4 4.3 2.6-0.99 -0.45 MBHTWFLA

Page 17: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 215

Report #468 September 2008

Ring Crush, 42 lb Linerboard - 42X1TAPPI Official Test Method T822

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

90.6 90.6 94.8 95.9 93.0 92.4 163.8 2.8 4.1 2.50.41 0.44 LDHZ68ZX

90.4 90.7 92.3 92.4 91.4 90.4 164.3 1.0 4.5 1.60.08 -0.03 TDJ5K24A

100.9 101.9 101.4 * 106.8 34.1 0.7 7.4 9.32.28 3.78X H TM No Data No DataJDVBBP

88.7 91.5 93.2 91.1 91.1 90.2 163.0 1.8 4.0 2.60.01 -0.06 LCJJN99S

76.1 79.8 75.2 79.3 77.6 X 76.7 164.8 2.3 4.4 2.5-2.99X * X * -3.20X EMJZBNDY

93.2 94.7 95.9 89.4 93.3 92.5 165.5 2.8 4.8 4.40.49 0.48 MBK8JRZ2

91.3 93.0 91.4 90.0 91.4 90.4 154.6 1.2 4.1 1.80.07H -0.02 LCM61BGS

105.0 95.6 92.6 94.3 96.9 95.4 166.1 5.6 5.1 5.31.28XH 1.14 TCM6UXJC

96.8 97.3 94.5 97.5 96.5 94.0 154.7 1.4 4.6 3.01.20 0.82 LCNADFZ7

93.6 93.6 93.8 93.4 93.6 91.9 16L4.2 0.2 3.8 1.70.55 0.34 LXPT49P9

91.4 89.2 90.5 91.9 90.8 91.1 153.3 1.2 3.9 1.2-0.07L 0.14 LCQ28571

90.6 91.0 93.6 91.9 91.8 93.3 163.5 1.3 4.0 2.20.15 0.65 LCQJDVJH

85.6 81.6 83.3 82.9 83.4 85.9 163.0 1.7 3.0 6.6-1.71L L -1.05 H TBRXRJ77

88.4 89.1 80.1 89.6 86.8 88.7 164.6 4.5 4.1 3.6-0.95* -0.41 LZS19VSU

94.5 90.1 91.5 89.6 91.4 93.2 164.3 2.2 4.1 2.10.07 0.63 LCS6GR3G

94.7 94.7 89.7 8L4.5 0.0 4.4 4.20.80 -0.18 LC No Data No Data No DataSDZSQL

94.9 96.5 97.8 94.6 95.9 94.6 163.9 1.5 4.1 2.01.07 0.95 LCSMS7DQ

87.5 78.6 86.2 85.9 84.5 83.3 163.6 4.0 3.8 3.0-1.45* -1.66 ENSVJQRD

110.7 108.9 109.8 X 101.7 142.7 1.3 3.5 6.34.13X X 2.61* H LC No Data No DataTKJAPE

95.4 87.0 82.6 86.5 87.9 90.8 167.4 5.4 5.2 3.5-0.71H 0.07 TCTLEVJ7

92.8 93.9 90.7 90.1 91.9 92.4 164.3 1.8 4.1 1.80.18 0.45 TDU19QHJ

96.0 95.5 99.3 98.3 97.3 95.2 164.1 1.8 3.9 2.71.37 1.09 LCVUEZJL

94.8 91.3 93.7 93.3 91.1 154.0 1.8 3.8 1.70.48 0.14 LC No DataW3C1SS

83.5 87.3 87.0 77.8 83.9 81.0 163.0 4.4 3.9 7.0-1.59* -2.20* H TQW7V1CC

91.9 95.4 94.8 94.3 94.1 95.9 163.8 1.5 4.5 2.80.66 1.26 LCWAHKBP

83.6 83.0 83.9 84.7 83.8 84.9 164.6 0.7 4.4 4.6-1.61 -1.29 TXWB4J61

90.5 90.7 92.2 91.3 91.2 87.0 153.7 0.8 4.8 3.40.02 -0.82 LCWBVQT5

90.4 103.6 93.4 90.9 94.6 93.0 167.4 6.2 6.1 5.40.77*H 0.58 LCWGBZGU

75.4 68.3 86.3 85.6 78.9 * 74.2 16H10.5 8.6 9.8 10.0-2.70XH X H -3.79X H IMY42WPX

90.9 96.4 91.3 94.6 93.3 87.4 163.1 2.6 2.7 6.80.49 -0.71 H LCYX2G1A

89.6 91.5 90.1 89.7 90.2 91.9 163.6 0.9 4.3 2.4-0.19L 0.33 LDZSA3VL

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Containerboard Interlaboratory Testing ProgramAnalysis 215

Report #468 September 2008

Ring Crush, 42 lb Linerboard - 42X1TAPPI Official Test Method T822

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

90.48

4.07

4.10

58

4

4

91.05

5.57

5.11

58

6

2

90.76

4.91

4.70

60

5

1

91.05

5.56

4.23

63

1

2

91.09 90.47

4.53 4.31

4.62 4.30

3.55 3.66

64 63

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Instrument Code List as Reported by the Labs

(EM) - Emerson 1200 (EN) - Emerson 2200

(EX) - Emerson (model not specified) (IM) - Instron 4486

(LC) - L & W Crush Tester 48 (LD) - L&W Crush Tester 248

(LX) - L & W 506 (LZ) - L & W Crush Tester (model not specified)

(MB) - Messmer Buchel K440 (TB) - TMI Monitor/Compression Tester, Model 17-70

(TC) - TMI Monitor/Compression Tester, Model 17-37 (TD) - TMI Digital Crush Tester, Model 17-09

(TM) - TMI/Hinde & Dauch (TQ) - Thwing-Albert QC-II Series

(TX) - TMI Digital Crush Tester (model not specified) (XX) - Instrument make/model not specified by lab

Page 19: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 216

Report #468 September 2008

Ring Crush, 69 lb Linerboard - 69Y1TAPPI Official Test Method T822

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

145.3 160.3 147.0 144.1 149.1 145.7 811.9 7.5 9.1 7.00.95*H L 0.41 TC186LUX

144.3 144.8 141.5 150.2 145.2 144.9 85.3 3.6 5.4 2.80.19 0.25 LC1VGMWT

143.4 139.7 142.3 140.6 141.5 145.0 83.4 1.7 3.8 4.0-0.53L L 0.28 LC29EY3B

140.3 156.3 150.4 147.2 148.6 146.4 86.9 6.7 6.5 6.50.83 0.53 LC2BN67Q

146.0 147.6 150.4 151.6 148.9 145.0 85.7 2.6 5.5 7.20.90 0.27 LD2CKFFZ

142.2 143.7 146.2 144.0 142.8 54.1 2.0 4.3 2.3-0.04 -0.14 LC No Data2N21ZW

144.0 139.1 141.8 143.4 142.0 142.0 85.8 2.2 4.9 1.7-0.42 -0.29 LC34N2Z6

145.6 146.0 149.1 139.7 145.1 142.5 84.6 3.9 4.7 4.30.17 -0.20 LC3M1PBT

134.0 155.4 152.7 142.3 146.1 145.9 8H7.6 9.8 6.9 7.70.36H 0.44 LC42BRDM

140.6 140.6 140.6 1L5.9 0.0 5.9 0.0-0.71 -0.56 L EX No Data No Data No Data4EY1Y7

153.0 147.0 151.4 145.1 149.1 145.3 82.9 3.7 3.5 7.70.94L L 0.34 LC4VCYM6

144.6 143.8 143.5 136.7 142.2 137.2 85.2 3.7 5.8 8.9-0.40 -1.19 MB537FEA

137.4 135.9 138.8 133.3 136.4 136.3 85.2 2.4 4.8 3.1-1.52 -1.35 LZ6CBDX2

147.6 144.8 146.7 145.7 146.2 147.3 84.6 1.2 4.6 2.70.38 0.70 LC6G8VD3

139.6 134.3 138.9 139.4 138.0 135.2 85.7 2.5 5.3 4.1-1.19 -1.55 EM6MSJPF

143.6 143.7 158.9 146.8 148.3 145.9 814.6 7.3 10.8 5.60.77*H 0.44 LC7KS1WX

140.5 148.6 145.7 138.4 143.3 143.0 85.0 4.7 4.5 3.4-0.18 -0.10 EM837PQQ

137.5 139.2 143.2 143.2 140.8 142.2 814.1 2.9 12.2 6.5-0.67H -0.24 LD9AFL3V

135.7 128.3 131.8 141.7 134.4 136.5 85.0 5.7 9.9 7.0-1.90* * -1.31 EN9WD2GX

149.4 149.2 149.1 158.6 151.6 149.7 84.3 4.7 4.7 3.81.41* 1.15 LZ9WKAPQ

143.6 144.7 145.9 143.2 144.4 145.3 84.0 1.2 3.8 1.60.02 0.33 LCA3155J

140.8 140.0 145.0 147.6 143.4 137.0 85.5 3.6 5.0 10.6-0.17 -1.23 H TAANXJ5W

149.6 144.9 146.3 147.3 147.0 143.2 85.0 2.0 4.9 4.40.54 -0.05 LCAYZ5SF

147.0 148.2 141.3 146.1 145.7 146.0 85.6 3.0 4.9 3.70.27 0.47 LCBMZCHA

137.0 138.3 136.2 135.0 136.6 137.3 85.7 1.4 5.9 1.8-1.47L -1.17 TMBPLBBL

139.3 147.4 142.8 141.8 142.8 145.6 85.0 3.4 5.4 4.0-0.27L 0.39 LZBXWQ79

148.0 147.9 141.4 143.1 145.1 153.7 84.6 3.4 4.6 9.50.17L L 1.90 H LCCCUAQ3

150.9 138.7 154.1 147.9 146.9 715.5 8.1 10.8 7.70.71L H 0.63 LC No DataCZV9UU

140.4 132.1 142.6 139.0 138.5 139.5 74.1 4.5 7.8 3.5-1.10L -0.76 LCD9AUXA

145.4 145.4 144.0 5L4.0 0.0 3.9 2.50.23 0.09 TC No Data No Data No DataDFVLTH

160.8 150.4 150.8 146.8 152.2 152.9 810.6 6.0 7.8 4.21.53XH 1.76 TCDGJT5L

140.9 155.0 150.9 143.7 147.6 150.5 84.5 6.5 4.5 5.90.65 1.30 LCDJVZTT

148.6 149.7 149.5 150.5 149.6 156.2 8L6.3 0.8 7.3 7.11.03 2.37* LCE86ZUQ

137.0 141.3 151.0 152.3 145.4 144.3 85.5 7.4 5.7 5.80.23 0.15 LCECT5RY

143.5 143.5 145.0 5L17.8 0.0 11.6 8.4-0.14H 0.27 LD No Data No Data No DataEHB1B4

Page 20: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 216

Report #468 September 2008

Ring Crush, 69 lb Linerboard - 69Y1TAPPI Official Test Method T822

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

171.3 168.7 170.0 X 162.1 65.1 1.9 4.4 6.64.96X X 3.48X LC No Data No DataEQBWCU

149.6 139.2 133.6 147.1 142.4 145.2 86.2 7.3 6.0 7.2-0.36 0.32 LZEZ2GG6

141.7 144.8 145.1 147.8 144.9 142.6 84.2 2.5 4.4 3.00.12 -0.17 LXGXHEKH

135.7 139.5 138.5 137.2 137.7 138.0 85.7 1.6 6.2 2.0-1.25 -1.04 TDH9KQ8C

145.1 146.0 144.8 142.7 144.7 138.3 84.7 1.4 4.7 7.60.09L -0.98 LDHYNU5N

145.0 145.2 143.4 147.8 145.3 147.3 85.0 1.8 4.5 2.70.21 0.70 LCJ2BJD8

149.3 135.3 137.9 139.1 140.4 140.4 49.6 6.1 9.6 6.1-0.74H H -0.59 LZKL9DBA

157.4 157.7 155.1 156.7 156.7 * 156.0 85.1 1.2 4.6 1.72.40* * 2.33* LDL81V99

150.6 150.6 139.6 4L4.6 0.0 5.2 7.61.23 -0.73 LC No Data No Data No DataM536WR

151.7 154.9 153.3 153.3 26.7 2.3 6.7 2.31.74 1.82 TM No Data No DataMS513M

131.9 134.1 135.7 136.0 134.4 139.9 84.4 1.9 4.5 6.4-1.89* -0.67 TDNJRGGG

143.1 143.9 141.3 145.7 143.5 144.0 84.2 1.8 4.5 1.4-0.14L 0.09 LCNZSYU8

142.9 148.2 145.5 142.3 144.7 143.0 85.1 2.7 4.8 2.90.09 -0.10 ENQ211MJ

145.7 139.4 143.7 144.4 143.3 146.5 84.3 2.8 4.4 6.1-0.18L 0.56 LDQDNFWW

139.9 140.9 140.1 138.2 139.8 139.1 84.8 1.1 4.9 3.6-0.86L -0.82 TMQJND1B

149.3 148.7 150.3 149.4 148.9 7L3.5 0.8 4.0 1.21.00 1.00 LD No DataQS7YT7

142.7 144.0 140.6 137.7 141.3 138.0 85.9 2.8 6.0 4.5-0.57 -1.03 LCRWQ65T

124.0 120.4 122.0 124.0 122.6 X 123.7 87.2 1.8 6.7 2.0-4.16X X X X -3.71X EMSC7WCR

130.9 133.9 132.8 134.2 132.9 * 132.7 84.5 1.5 4.5 1.3-2.17* L -2.02* TBSJ5QW5

140.8 130.8 146.1 133.0 137.7 134.5 85.1 7.1 9.3 7.2-1.27 -1.69 LCSK9THV

147.3 144.9 147.2 145.3 146.2 146.7 84.3 1.3 4.9 1.60.37 0.60 LCSXML9F

156.0 152.5 151.1 153.7 153.3 152.1 85.6 2.1 5.6 2.61.75*L 1.61 LCTBNEKQ

139.8 137.3 140.4 138.7 139.1 139.7 74.1 1.4 5.1 3.4-1.00L -0.71 LCTY4SGJ

136.8 137.0 129.2 135.2 134.6 131.1 84.5 3.6 4.7 6.8-1.86* -2.32* LCUD6XW7

140.6 138.5 139.2 139.8 139.5 138.7 84.1 0.9 3.8 1.1-0.91L -0.90 TDUZYPWK

140.4 144.4 142.5 160.0 146.8 143.5 86.0 8.9 6.0 7.10.50* -0.01 LZW5HFAR

138.9 142.2 147.3 145.0 143.3 144.2 84.9 3.6 5.5 2.8-0.17 0.13 MBW9YYDU

141.8 147.5 146.0 146.8 145.5 144.3 74.3 2.6 4.2 2.60.25 0.15 XXWZTV9W

144.9 143.6 142.2 142.2 143.2 142.1 84.3 1.3 4.4 2.5-0.20 -0.26 LCYK6F5N

152.3 135.5 175.4 160.3 155.9 * 145.8 8H16.8 16.6 13.1 15.52.24H XH *H 0.42 H IMYXJTGV

Page 21: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 216

Report #468 September 2008

Ring Crush, 69 lb Linerboard - 69Y1TAPPI Official Test Method T822

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

143.24

5.57

5.74

57

5

3

143.58

6.76

7.00

58

6

1

144.10

5.85

6.18

58

5

2

144.53

6.49

6.93

60

2

3

144.23 143.53

5.20 5.34

6.89 6.32

4.68 5.54

63 63

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Instrument Code List as Reported by the Labs

(EM) - Emerson 1200 (EN) - Emerson 2200

(EX) - Emerson (model not specified) (IM) - Instron 4486

(LC) - L & W Crush Tester 48 (LD) - L&W Crush Tester 248

(LX) - L & W 506 (LZ) - L & W Crush Tester (model not specified)

(MB) - Messmer Buchel K440 (TA) - Thwing-Albert (model not specified)

(TB) - TMI Monitor/Compression Tester, Model 17-70 (TC) - TMI Monitor/Compression Tester, Model 17-37

(TD) - TMI Digital Crush Tester, Model 17-09 (TM) - TMI/Hinde & Dauch

(XX) - Instrument make/model not specified by lab

Page 22: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 223

Report #468 September 2008

STFI, 42 lb Linerboard - 42X1TAPPI Provisional Test Method T826

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

24.8 24.0 24.7 24.4 24.5 24.2 161.6 0.4 1.8 0.5-0.28 -0.57 LW214WGA

25.2 23.4 24.5 24.5 24.4 24.2 160.6 0.8 0.5 1.3-0.36L L L L -0.62 XX4TGLKL

24.8 24.5 24.6 24.8 24.7 25.7 16L2.1 0.2 2.8 3.8-0.06 1.15 H LZ5HPQMP

24.8 23.0 25.1 24.5 24.4 24.4 161.6 0.9 2.2 1.6-0.37L -0.41 LU6B1CB3

23.5 24.4 24.4 24.1 24.1 92.2 0.5 2.2 0.6-0.65 -0.72 LW No Data6UYN5Y

24.1 23.9 24.3 23.6 24.0 24.3 151.3 0.3 1.2 0.7-0.77L -0.49 LZ71DXL6

22.8 22.3 23.4 25.5 23.5 23.5 162.1 1.4 2.2 1.0-1.26*L -1.42 LA76UZB9

25.4 25.1 26.2 25.6 25.6 25.4 162.2 0.5 2.4 0.60.87 0.77 LW8X9YYY

26.2 25.3 25.5 25.4 25.6 25.9 162.1 0.4 2.0 0.70.90 1.38 LU8ZWHYB

24.8 24.7 25.0 25.5 25.0 25.0 162.2 0.4 2.5 1.00.32 0.31 LWANFENX

23.7 23.9 24.2 26.1 24.5 24.4 152.2 1.1 2.0 1.0-0.27 -0.34 LWB36U6N

28.0 25.7 27.4 27.2 27.1 * 26.2 161.9 1.0 2.0 0.92.41* * * 1.77 LUD1UGZ6

23.7 23.4 23.6 23.5 142.2 0.2 2.0 0.4-1.20 -1.38 LU No Data No DataDN891K

25.6 24.9 25.9 24.4 25.2 24.2 152.2 0.7 2.3 0.80.49 -0.62 XXDQM37R

26.2 25.9 26.0 26.9 60.0 0.2 0.0 1.11.33L L 2.52* XX No Data No DataEJST6R

23.8 23.0 25.4 24.4 24.2 23.9 162.5 1.0 2.6 0.8-0.58 -0.91 LWGDUZ2M

24.0 24.5 24.3 25.0 24.5 24.3 161.9 0.4 2.0 0.5-0.27 -0.45 LWHAT4FR

23.9 25.2 25.9 25.0 25.0 24.7 160.4 0.8 0.5 0.60.25L L L L -0.05 LAHQAY3Q

22.6 23.8 23.9 23.7 23.5 24.6 161.4 0.6 2.1 1.1-1.25 -0.09 LWJCMWMV

26.0 26.3 25.3 26.2 26.0 25.2 152.4 0.5 2.4 0.71.26 0.54 XXJT3GCL

24.1 23.4 22.9 22.2 23.1 24.2 152.2 0.8 2.4 1.0-1.63* -0.56 LWK5SKB6

24.8 25.0 24.4 25.4 24.9 24.4 162.2 0.4 2.2 0.80.17 -0.35 LUKWASH3

27.2 25.5 23.9 25.5 25.5 24.9 162.8 1.4 2.5 0.80.81 0.28 LWLWW6K5

24.8 26.9 25.7 26.1 25.9 26.0 162.7 0.9 2.4 1.31.18* 1.46 XXMT6RRH

25.1 25.8 24.8 25.2 25.2 24.5 161.8 0.4 1.9 0.70.51L -0.21 LUNH5HM5

22.7 24.0 23.6 22.0 23.1 23.0 152.2 0.9 2.1 1.3-1.70* -1.93 LWPKVFYN

25.2 25.1 24.2 24.9 24.9 24.7 162.0 0.5 2.1 0.80.16 0.01 LUPSKYQW

25.6 26.0 24.8 26.2 25.7 25.7 161.7 0.6 1.9 0.80.95 1.14 XXPXSHTV

25.9 24.6 26.0 22.3 24.7 24.6 160.4 1.7 0.5 1.70.01L L L *L -0.12 XXQ522RM

26.5 26.2 4.4 25.9 20.8 X 25.4 13H2.1 10.9 2.5 6.6-4.07L XL 0.83 H LWT1EQYM

32.8 28.7 31.0 29.7 30.5 X 29.8 160.2 1.7 0.1 6.25.98XL XL XL XL 5.94X H TSUJAD7W

25.7 26.0 25.6 25.6 25.7 24.8 142.1 0.2 2.1 0.91.04 0.08 LWUP3FG2

23.0 23.0 22.9 11L2.7 0.0 1.9 0.7-1.77 -2.12* BK No Data No Data No DataVAQWKZ

23.6 23.7 24.8 24.1 24.1 24.4 162.1 0.6 2.1 0.5-0.68 -0.31 XXW1U7BA

22.7 21.1 25.5 24.1 23.3 24.0 16H2.2 1.9 2.0 2.7-1.42X -0.86 H LWW48JVS

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Containerboard Interlaboratory Testing ProgramAnalysis 223

Report #468 September 2008

STFI, 42 lb Linerboard - 42X1TAPPI Provisional Test Method T826

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

25.0 23.9 24.3 25.0 24.5 24.5 152.2 0.5 2.3 0.6-0.19 -0.26 LWWVF8JX

28.2 25.9 27.8 24.3 26.5 25.8 162.6 1.8 2.5 1.31.86* * 1.29 LWX1X68H

24.7 24.7 25.5 9L2.1 0.0 2.5 3.3-0.07 0.89 H LW No Data No Data No DataX7BXEG

24.2 24.1 23.4 23.8 23.9 23.9 82.6 0.4 2.4 0.3-0.87 -0.98 LUXFALGU

24.9 25.0 25.5 25.7 25.3 25.2 162.2 0.4 1.8 1.00.58 0.61 BKXMSY71

25.8 24.2 28.1 23.0 25.3 25.3 16H3.1 2.2 2.7 2.10.55* 0.74 LZZYR97D

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

24.89

1.35

2.05

38

2

1

24.64

1.09

2.01

35

4

2

25.00

1.16

2.20

36

3

2

24.74

1.20

2.17

38

1

2

24.72 24.70

0.97 0.86

2.12 2.13

0.91 1.66

39 40

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Instrument Code List as Reported by the Labs

(BK) - Buchel Strip Compression Tester BK-155 (LA) - L & W Autoline

(LU) - L & W 52 without moisture correction (was 53) (LW) - L & W 53 with moisture correction (was 53M)

(LZ) - L & W (model not specified) (TS) - TMI Monitor/STFI Compression Tester, 17-33

(XX) - Instrument make/model not specified by lab

Page 24: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 224

Report #468 September 2008

STFI, 69 lb Linerboard - 69Y1TAPPI Provisional Test Method T826

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

35.4 34.9 35.6 34.6 35.1 35.5 82.1 0.4 2.2 0.70.01 0.35 BK1XGWNW

34.6 33.2 33.6 34.2 33.9 35.7 82.3 0.6 6.6 3.0-0.93 0.53 H LW2MS64W

35.6 35.3 36.1 35.6 35.7 35.6 82.1 0.3 2.5 0.70.40 0.40 LU3ETTVF

34.3 34.3 33.1 5L2.6 0.0 2.2 1.4-0.65 -1.81 BK No Data No Data No Data3WGLUR

34.5 34.2 33.9 34.7 34.3 34.4 82.8 0.4 2.8 0.7-0.61 -0.67 LZ4GDP1R

35.6 36.9 36.0 36.2 36.2 34.8 83.0 0.5 3.0 1.70.78 -0.26 LW4NJTT5

34.4 34.9 34.2 33.9 34.3 34.2 82.5 0.4 2.4 0.4-0.59 -0.85 XX5EQGA2

32.5 33.0 34.9 33.9 33.6 34.0 82.7 1.1 2.5 1.3-1.17 -0.99 LW5GR819

34.7 34.9 34.7 34.9 34.8 35.3 8L2.2 0.1 2.2 0.8-0.25 0.17 LW692VH8

35.7 37.4 37.0 36.6 36.7 37.1 83.0 0.7 5.5 2.61.18 1.77 XX6U183Z

34.8 35.0 34.3 35.1 34.8 34.6 82.8 0.4 2.6 0.4-0.24 -0.50 LU9FW4FA

34.4 36.8 34.9 35.5 35.4 36.1 83.3 1.0 5.7 1.40.20 0.90 LWAE4BK5

33.9 34.5 35.2 34.3 34.5 35.4 72.5 0.6 2.9 2.9-0.49 0.26 H LWCWAK9H

42.7 36.0 35.4 35.9 37.5 35.8 8H6.6 3.5 5.4 3.01.80XH 0.58 H LZDK4HQY

33.7 34.8 35.5 36.7 35.2 35.0 82.4 1.3 2.4 1.10.04 -0.14 LUEGDUR3

32.8 41.0 34.8 35.8 36.1 35.0 8H1.0 3.5 0.9 2.60.73L XL L L -0.11 XXFQEMDA

33.8 33.7 34.3 33.0 33.7 34.1 82.1 0.5 2.3 0.7-1.07 -0.90 LUGG8WTC

34.0 35.1 34.1 35.2 34.6 36.4 82.4 0.7 6.3 2.5-0.39 1.09 LWGQKBEE

31.8 34.5 35.3 33.9 33.9 34.8 80.6 1.5 0.7 1.7-0.94*L L L L -0.27 LAJDE46M

34.8 33.6 35.8 35.2 34.9 34.4 82.6 0.9 2.5 0.9-0.20 -0.64 XXJJY9WM

34.4 34.8 34.2 33.7 34.3 33.8 81.4 0.5 1.9 0.6-0.62L -1.16 LUJXELTN

33.8 34.2 32.7 35.9 34.2 34.3 82.4 1.3 2.5 1.3-0.72 -0.78 LWMGG8DH

37.9 37.9 * 35.6 3L3.7 0.0 3.5 2.12.11* 0.37 LW No Data No Data No DataMX913Q

35.1 32.9 35.3 33.8 34.3 34.1 82.2 1.1 3.2 1.3-0.65L -0.94 LAN8PB3U

37.5 37.5 37.6 37.4 37.5 37.2 8L3.0 0.1 2.5 3.21.80 1.82 H LUNV94QV

33.5 33.3 33.4 33.4 6L2.2 0.1 2.3 0.4-1.31 -1.54 LU No Data No DataQJBKL9

36.8 37.7 37.2 36.6 60.0 0.6 0.0 1.41.60L *L 1.34 XX No Data No DataQRBBEH

33.8 33.9 34.5 34.8 34.2 34.5 82.4 0.5 2.6 0.4-0.66 -0.56 LWQXKTRG

37.9 35.4 41.0 35.8 37.5 40.8 87.6 2.6 6.0 4.51.83* XH 5.08X H LWS2R5TN

37.5 38.3 36.7 34.5 36.8 37.3 83.2 1.6 2.8 1.51.24* 1.90 XXTL79HY

34.7 35.6 33.8 34.3 34.6 34.3 82.8 0.7 2.7 0.7-0.40 -0.72 LUTZRWNQ

36.9 35.8 35.7 36.9 36.3 35.5 83.3 0.6 3.3 1.10.90 0.36 LWV9U5NT

37.6 36.4 36.8 34.6 36.4 36.5 82.7 1.3 2.6 0.80.94 1.18 LWVA9M2K

40.3 41.7 42.2 40.2 41.1 X 42.7 80.3 1.0 0.3 10.74.52XL XL XL XL 6.82X H TSW15QT3

33.6 34.9 33.7 34.1 35.2 72.3 0.7 5.6 2.6-0.79 0.07 LW No DataWBT1P8

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Containerboard Interlaboratory Testing ProgramAnalysis 224

Report #468 September 2008

STFI, 69 lb Linerboard - 69Y1TAPPI Provisional Test Method T826

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

35.9 34.3 35.8 34.3 35.1 35.7 81.0 0.9 0.9 1.0-0.03L L L L 0.49 XXWSTR1C

29.6 30.1 38.0 34.9 33.1 34.9 7H5.0 4.0 6.6 4.3-1.51X X *H -0.22 H LWWWGKJR

34.1 34.0 34.2 32.0 33.6 34.1 83.7 1.1 3.2 1.3-1.16* -0.97 LWYSDQXP

34.5 36.7 36.8 36.2 36.1 37.3 82.5 1.1 2.2 1.80.72 1.97 LZZB4T7E

34.1 36.2 33.2 32.2 33.9 33.5 73.1 1.7 3.1 1.6-0.92* -1.51 LWZGTGSC

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

34.82

1.47

2.49

35

2

3

35.09

1.37

2.62

33

4

3

35.24

1.30

2.98

35

3

2

34.92

1.30

2.67

37

1

2

35.12 35.14

1.32 1.12

3.07 3.47

1.40 1.79

39 38

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Instrument Code List as Reported by the Labs

(BK) - Buchel Strip Compression Tester BK-155 (LA) - L & W Autoline AL300

(LU) - L & W 52 without moisture correction (was 53) (LW) - L & W 53 with moisture correction (was 53M)

(LZ) - L & W (model not specified) (TS) - TMI Monitor/STFI Compression Tester, 17-33

(XX) - Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 228

Report #468 September 2008

Roughness - Stylus Method, 42 lb Linerboard - 42XTAPPI Provisional Test Method T575

WebCode Mean SDrMonthly Results

CPV

Cumulative ResultsMean SDr MonthsCPV Inst

109.4 112.4 45.9 9.4-0.74 -0.65 EV11RQ29148.9 162.6 419.5 23.11.27 1.46 EV1KLDPB121.1 130.8 42.5 13.9-0.14 0.13 EV2R696C

99.7 92.7 411.7 9.4-1.23 -1.47 EV33TEDG108.5 112.3 48.5 13.1-0.78 -0.65 EV6CWYW7

126.3 113.8 413.0 15.10.12 -0.59 EV88W9T5120.5 130.7 46.0 6.6-0.17 0.12 EV9EL3UC141.0 214.5 45.5 16.90.87 3.63X XX9UMGGD132.7 175.1 417.8 14.40.45 1.98 XXB9RZW3130.4 159.4 49.5 12.00.33 1.32 XXBAS4YB

119.1 121.7 317.2 13.8-0.24 -0.26 EVCY9A1J139.9 137.5 410.6 7.10.82 0.41 EVD93AQS134.8 149.5 418.4 13.00.56 0.91 XXEP6AW9140.3 145.7 214.1 11.60.84 0.75 XXHCQGHB

99.6 107.6 418.4 15.8-1.23 -0.85 EVK7D21Y

83.7 * 91.7 43.2 3.8-2.04 -1.51 EVKYXBHE228.3 X 241.3 48.5 16.85.32 4.75X EVMPXVCE127.0 94.9 43.3 6.30.16 -1.38 EVPWU9JC111.6 115.4 412.4 11.7-0.62 -0.52 EVQEANUT104.8 114.5 411.6 10.3-0.97 -0.56 EVRLBEHG

0.9 X 570.1 40.1 140.0-6.26 18.51X EVRZ6ZLY240.2 X 253.6 412.1 27.65.93 5.27X XXSUN54D131.7 137.6 48.1 17.00.40 0.41 EVSZMCYP171.5 * 156.5 411.1 8.52.43 1.20 EVW5NVM5128.2 129.8 49.8 11.90.22 0.09 EVWR7NYK

98.2 99.3 45.7 5.5-1.31 -1.19 XXZFK4AA143.3 148.0 36.9 13.10.99 0.84 EVZR2RF5

Consensus (All Labs) Results

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

123.84 127.80

19.64 23.89

11.59 12.32

24 23

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

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Containerboard Interlaboratory Testing ProgramAnalysis 228

Report #468 September 2008

Roughness - Stylus Method, 42 lb Linerboard - 42XTAPPI Provisional Test Method T575

Instrument Code List as Reported by the Labs

(EV) - Emveco Microgage Model 210-R (XX) - Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 231

Report #468 September 2008

Internal Bond, 42 lb Linerboard - 42W3TAPPI Provisional Test Method T569

WebCode Mean SDrMonthly Results

CPV

Cumulative ResultsMean SDr MonthsCPV Inst

127.2 131.5 47.3 5.80.65 1.39 TM3LGZKL108.6 108.8 314.9 10.2-0.95 -1.10 SC3VMWHW112.8 111.1 45.3 5.6-0.59 -0.85 TM4SCURC127.2 124.9 45.8 6.10.65 0.67 HY77WM6U114.5 115.0 34.1 4.4-0.45 -0.42 SC8AZ9KQ

124.9 121.7 45.2 5.30.45 0.32 SC93MF9U124.6 124.5 42.4 3.10.43 0.62 HYF5WKG5133.0 114.0 417.2 19.11.15 -0.53 SCG9KGL7115.0 118.9 46.2 5.3-0.40 0.00 SCKTDSG4120.8 116.0 44.0 7.30.10 -0.32 TMKYJW7X

136.8 131.2 47.1 8.11.48 1.35 TMPXU3J6132.0 132.0 47.4 8.11.07 1.44 HZQEE37U119.5 118.1 43.0 2.5-0.01 -0.08 HYQME3JM

91.4 * 103.5 45.3 3.9-2.44 -1.68 TMRNHT8V102.6 105.0 47.2 8.0-1.47 -1.52 TMSZ4BA1

128.2 131.4 42.6 6.40.74 1.37 HYTFY922115.0 116.3 43.5 4.1-0.40 -0.28 SCUFPWPB130.2 125.2 47.9 7.50.91 0.70 SCW7TFCQ109.0 109.2 48.0 6.8-0.92 -1.06 SCXT32EG

Consensus (All Labs) Results

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

119.65 118.84

11.59 9.11

7.52 7.56

19 19

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

Instrument Code List as Reported by the Labs

(HY) - Huygen Digitized Scott Internal Bond Tester (HZ) - Huygen Internal Bond Tester with AccuPress

(SC) - Scott Internal Bond Tester (Manual) (TM) - TMI Monitor/Internal Bond Tester

Page 29: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 234

Report #468 September 2008

COF Inclined Plane (Slide Angle), 42 lb Linerboard - 42W3TAPPI Official Test Method T815

WebCode Mean SDrMonthly Results

CPV

Cumulative ResultsMean SDr MonthsCPV Inst

28.4 27.9 45.5 4.20.16 0.21 ZZ255XYL31.2 28.1 41.8 1.90.87 0.29 ZZ28RJR831.9 29.0 48.5 5.61.04 0.65 ZZ2H88A126.0 27.5 41.4 1.1-0.44 0.05 ZZ2LG4HX21.0 21.7 21.2 1.3-1.69 -2.31* ZZ57EXR4

30.8 28.3 43.1 2.30.77 0.37 ZZ5ADKT728.8 27.0 33.0 3.80.27 -0.16 ZZ7Y95TT27.5 44.0 34.1 3.6-0.06 6.71X ZZ853BQL27.2 25.3 32.3 2.2-0.14 -0.85 ZZA8J5X630.7 28.3 40.8 1.90.74 0.35 ZZD6ZHWU

32.4 31.4 41.3 1.41.17 1.62 ZZH5VBPA19.2 * 24.0 41.6 2.6-2.15 -1.35 ZZJ13TKB34.6 29.8 41.3 2.21.72 0.97 ZZJ4LY5T28.0 29.4 48.5 6.60.06 0.81 ZZJWHP7U25.8 26.5 32.2 4.9-0.49 -0.37 ZZK29Q6S

26.6 26.6 40.2 0.4-0.29 -0.34 ZZL3AR6X30.5 28.2 41.9 3.10.69 0.32 ZZLD7QW322.8 25.2 42.9 3.4-1.24 -0.90 ZZMATZWT19.0 * 22.1 41.6 2.8-2.20 -2.13* ZZMBSJZ131.6 32.2 41.9 2.00.97 1.94 ZZMYW59X

25.4 25.5 42.1 1.8-0.59 -0.75 ZZNWQJCQ31.2 29.7 42.0 2.10.87 0.91 ZZQ5CDAW25.8 27.4 41.9 2.3-0.49 -0.01 ZZSJP94X27.6 26.6 43.2 2.6-0.04 -0.32 ZZSLAMHN26.2 26.6 43.1 2.1-0.39 -0.34 ZZVU8LJL

32.2 29.4 43.0 3.51.12 0.81 ZZWPJBZE26.7 28.8 40.8 1.7-0.26 0.55 ZZWWTQT4

Consensus (All Labs) Results

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

27.74 27.39

3.98 2.48

3.30 3.02

27 26

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

Page 30: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 234

Report #468 September 2008

COF Inclined Plane (Slide Angle), 42 lb Linerboard - 42W3TAPPI Official Test Method T815

Instrument Code List as Reported by the Labs

(ZZ) - Instruments No Longer Tracked

Page 31: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 237

Report #468 September 2008

Air Resistance, 42 lb linerboard - 42W3TAPPI Official Test Method T460

WebCode Mean SDrMonthly Results

CPV

Cumulative ResultsMean SDr MonthsCPV Inst

24.5 24.9 41.8 3.10.53 0.60 HG2LL5GH14.1 X 19.4 32.1 1.6-2.60 -1.35 XX4GG1YU11.8 X 17.2 41.1 1.9-3.29 -2.17* LA64AL8923.0 22.2 41.0 2.20.08 -0.35 XX94N9GS20.4 26.2 43.4 2.7-0.71 1.06 GA9E8B7Z

23.4 25.6 41.9 3.30.20 0.84 XX9WHFUX24.0 22.9 42.5 1.90.38 -0.10 LAA1Z2R418.9 19.8 40.9 1.3-1.14 -1.24 XXCAZBAY25.4 25.0 42.1 2.50.78 0.63 HGD7PW3623.9 23.0 31.6 1.80.35 -0.07 TLE7VD1H

23.0 21.8 42.9 3.10.07 -0.52 XXG9V1TC24.6 25.8 41.1 1.60.55 0.94 GAGQ32MD20.0 22.0 41.7 2.6-0.84 -0.45 LWHWEL2519.5 19.1 43.0 2.6-0.98 -1.46 GAK3YCMJ22.5 22.4 42.0 2.2-0.08 -0.28 XXK9KKZU

27.3 24.6 42.1 1.91.37 0.48 GGLJE77423.9 23.9 42.2 2.10.34 0.25 LWQDJ1GA26.6 26.5 41.5 2.11.16 1.19 HGQJQ48E29.2 25.3 43.4 2.91.92 0.74 GARPQ2W923.2 23.6 41.6 1.50.12 0.12 LPUDQSN9

36.7 X 30.0 41.5 2.34.17 2.44* XXWAJCBH23.1 23.2 41.6 2.10.10 0.01 GSXRYAL817.0 20.4 35.5 4.3-1.71 -1.00 LWXSYQED24.1 23.9 42.4 2.50.41 0.26 TLZPLF1S21.7 21.6 40.4 1.3-0.31 -0.58 XXZPMZ1P

Consensus (All Labs) Results

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

22.76 23.21

3.34 2.79

2.36 2.40

23 25

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

Page 32: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 237

Report #468 September 2008

Air Resistance, 42 lb linerboard - 42W3TAPPI Official Test Method T460

Instrument Code List as Reported by the Labs

(GA) - Gurley Precision #4340 Automatic Densometer (GG) - Gurley Precision #4320 Densometer

(GS) - Gurley Hill S-P-S Tester #4190 (HG) - Technidyne - Hagerty Model #1

(LA) - L & W Autoline (LP) - L & W Air Permeance Tester SE 166

(LW) - L & W Gurley Densometer, Oil Flotation (TL) - Teledyne Gurley Densometer #4110, Oil Flotation

(XX) - Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 240

Report #468 September 2008

Flat Crush Strength (CMT), 26 lb Corrugating Medium - CM71TAPPI Official Test Method T809

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

60.3 62.8 65.7 61.0 62.4 62.8 152.8 2.4 2.9 1.5-0.18 -0.07 MB11TM8Y

61.9 61.9 62.9 63.2 62.5 62.2 162.0 0.7 2.5 0.6-0.18 -0.31 LD12HV62

61.5 63.3 61.0 62.2 62.0 62.1 163.0 1.0 2.9 1.0-0.33 -0.37 LC1XKK51

68.8 66.4 69.3 68.2 67.1 153.7 1.6 3.8 2.21.73* * 1.92 LD No Data2GKHTF

66.2 66.1 66.2 65.9 66.1 66.3 16L2.1 0.1 2.4 1.11.04 1.54 TM3W6QJK

63.6 62.7 62.7 63.4 63.1 64.0 162.6 0.5 2.8 1.10.03 0.49 LC4GZLDL

66.9 70.5 64.3 67.5 67.3 66.6 152.5 2.6 3.1 2.31.44* L 1.68 LC52CT1L

65.0 66.7 63.7 63.7 64.8 64.5 83.4 1.4 3.1 1.60.59 0.70 LD55FFT3

67.3 70.1 68.6 72.4 69.6 * 66.0 163.9 2.2 3.1 3.02.21* X 1.40 LC61JNJQ

64.5 63.7 64.1 64.5 141.8 0.6 3.1 1.30.37 0.74 LC No Data No Data66NATZ

57.9 60.3 55.3 60.7 58.6 67.3 165.6 2.5 4.6 7.4-1.49*H 1.99 H LX7B55YH

59.5 60.0 54.6 62.4 59.1 59.7 163.1 3.3 4.5 3.2-1.30* -1.46 LC7H94DE

61.8 59.8 60.9 60.7 60.8 60.6 163.2 0.8 3.5 1.0-0.74 -1.04 LC8M459E

68.2 68.7 69.7 68.3 68.7 65.6 123.8 0.7 3.3 3.01.92* 1.20 LZAZUYCR

62.7 61.3 62.3 62.3 62.1 64.1 152.0 0.6 2.0 1.8-0.29L 0.55 LCBMHJJL

60.8 60.6 62.6 61.4 61.4 62.4 163.0 0.9 3.0 1.5-0.55 -0.25 TMBV11W1

64.3 64.3 65.2 8L3.4 0.0 3.0 1.90.42 1.03 LC No Data No Data No DataC698TY

60.4 63.1 60.7 60.2 61.1 59.7 163.7 1.3 3.1 1.7-0.64 -1.45 LCCCLA49

62.2 63.8 62.0 60.4 62.1 60.5 164.3 1.4 4.2 1.6-0.30 -1.12 TBCDLTSJ

64.9 63.3 63.4 61.9 63.4 63.8 162.5 1.2 2.8 1.70.12 0.42 LCCKRQFQ

61.6 62.9 59.8 60.9 61.3 61.4 122.7 1.3 2.9 2.0-0.57 -0.71 TBCNUW18

60.6 63.7 62.5 59.2 61.5 62.8 163.8 2.0 3.5 3.2-0.51H -0.05 LCE3BA55

58.5 62.3 46.6 59.4 56.7 * 59.8 16H5.3 6.9 4.1 4.3-2.11H H X H -1.43 H MBEARYN1

67.2 64.6 66.0 66.8 66.2 66.0 123.3 1.1 4.2 1.91.06 1.41 LCFC2RCS

63.6 64.5 62.9 63.9 63.7 62.9 163.3 0.7 3.1 2.00.24 -0.01 LCGMEUXA

62.0 58.7 59.7 60.7 60.3 59.4 162.4 1.4 2.7 1.2-0.91L -1.58 LXGQP9RG

63.2 67.2 64.3 67.5 65.6 63.6 162.7 2.1 2.9 3.90.85 0.30 LZH3RXJA

76.2 68.9 67.3 70.8 * 64.5 15H5.3 4.7 4.2 7.32.61XH H 0.72 H LC No DataJEXWPH

63.7 62.7 60.2 64.2 62.7 62.5 162.4 1.8 2.9 1.7-0.10 -0.17 XXJTRLE9

61.3 59.0 59.2 62.3 60.4 61.2 162.3 1.6 2.7 1.2-0.86L -0.78 LCKSCG7N

59.5 59.4 59.8 61.9 60.2 61.1 132.4 1.2 2.4 1.7-0.95 -0.81 LCKXB4LG

62.4 61.0 61.0 61.5 61.5 61.0 162.5 0.6 2.6 0.9-0.51L -0.86 LCM5H856

57.9 57.9 59.8 58.5 58.5 59.8 162.8 0.9 3.4 1.5-1.51 -1.40 LCPNP7HZ

59.7 57.0 58.3 57.3 58.1 60.0 164.7 1.2 3.5 1.5-1.65H *H -1.33 TDPV8AQ2

67.5 63.7 66.2 66.2 65.9 64.1 162.5 1.6 2.6 1.90.97 0.55 EMRRR9R6

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Containerboard Interlaboratory Testing ProgramAnalysis 240

Report #468 September 2008

Flat Crush Strength (CMT), 26 lb Corrugating Medium - CM71TAPPI Official Test Method T809

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

67.3 66.9 65.4 66.5 65.6 92.9 1.0 3.1 0.91.18 1.22 LD No DataRX8UQB

61.1 61.9 62.1 61.9 61.8 63.2 162.8 0.4 3.2 1.5-0.42 0.13 LCTGCFLX

60.5 62.7 61.3 62.7 61.8 61.7 162.4 1.1 2.5 1.3-0.40 -0.57 TMTGU5QG

69.0 62.4 68.0 66.1 66.4 64.8 144.0 2.9 3.8 2.31.12* H 0.87 LZTQYT2V

62.5 62.9 60.2 64.0 62.4 63.9 163.0 1.6 3.2 1.5-0.20 0.43 LCUWXQHJ

63.7 60.2 63.7 62.0 62.4 62.0 162.9 1.7 2.8 1.7-0.20 -0.42 TDV19QFX

62.4 61.0 62.8 63.0 62.3 62.4 162.6 0.9 2.8 1.4-0.24 -0.23 LDV8NM34

63.5 63.2 63.9 62.0 63.2 64.5 162.5 0.8 2.8 2.20.05 0.70 TAVNP9VK

63.6 64.3 63.0 63.7 63.7 63.5 162.2 0.5 2.5 0.60.22L 0.28 LCWKQRB4

64.3 61.7 61.0 64.2 62.8 60.5 152.8 1.7 3.6 4.7-0.07 -1.09 H LCWMV6U3

64.5 65.2 65.8 63.1 64.7 62.8 163.4 1.2 2.9 1.80.55 -0.04 LCWYYEUR

61.2 57.6 57.8 59.6 59.1 60.6 163.3 1.7 3.2 2.4-1.32 -1.06 LCXN1U9D

60.7 60.9 59.2 61.1 60.5 61.2 163.4 0.9 3.2 1.1-0.85 -0.76 LCXXPJEE

66.2 66.7 64.6 68.8 66.6 65.5 162.3 1.7 2.6 1.71.19* 1.17 LCY25M63

60.4 60.0 63.3 61.2 60.2 154.8 1.8 3.3 2.3-0.59H -1.22 LC No DataY6NVH9

61.9 59.5 61.5 60.2 60.8 59.6 153.3 1.1 3.0 1.6-0.75 -1.53 TBYP96M9

61.5 64.5 64.6 64.5 63.8 64.7 163.3 1.5 3.3 1.10.26 0.80 LCYSQL2U

64.6 64.6 62.7 8L1.3 0.0 2.3 1.00.54L -0.10 TU No Data No Data No DataZDJZ74

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

62.95

2.85

3.21

50

2

1

62.80

3.03

3.11

48

5

0

62.56

3.23

3.22

49

3

1

63.04

2.76

3.30

50

1

2

63.00 62.91

2.98 2.20

3.22 3.18

1.88 2.44

53 53

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Instrument Code List as Reported by the Labs

(EM) - Emerson 1200 Series (LC) - L & W Crush Tester 48

(LD) - L&W Crush Tester 248 (LX) - L & W 506

(LZ) - L & W Crush Tester (model not specified) (MB) - Messmer Buchel K440

(TA) - Thwing-Albert Model QC II-XDS (TB) - TMI Monitor/Compression Tester, 17-70

(TD) - TMI Digital Crush Tester, Model 17-09 (TM) - TMI/Hinde & Dauch

(TU) - TMI Universal Crush Tester (TMI K440) (XX) - Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 250

Report #468 September 2008

Fluted Edge Crush Strength (CFC), 26 lb Corrugating Medium - CM71TAPPI Official Method T824

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

73.1 72.8 69.5 71.8 72.7 92.6 2.0 2.5 1.5-0.38 -0.23 LD No Data17L463

76.9 74.1 75.7 76.1 75.7 76.7 161.9 1.2 2.3 1.30.51L L 0.64 LC22HCSJ

70.9 70.9 71.6 8L2.4 0.0 2.6 2.3-0.58 -0.48 XX No Data No Data No Data4GY5E8

69.0 69.9 69.7 69.8 69.6 69.6 81.6 0.4 1.8 0.6-0.88L L -0.92 LD5XWCMZ

63.4 64.2 62.1 65.1 63.7 * 62.9 165.7 1.3 5.0 1.7-2.22*H *H * H -2.38* TB7ZDG9N

78.4 76.1 76.0 73.8 76.1 74.9 164.9 1.9 3.3 2.00.59H 0.25 LZ896E6U

78.3 76.7 79.0 77.4 77.8 78.0 162.8 1.0 3.1 1.30.99 0.92 LC8KTB6Z

76.0 78.0 79.9 77.6 77.9 77.0 162.9 1.6 2.6 1.71.00 0.71 XX8LCXCJ

70.0 69.6 69.9 67.7 69.3 68.9 162.9 1.1 3.4 1.4-0.94 -1.08 XX8ZXAY5

82.3 79.5 81.6 82.6 81.5 81.8 152.7 1.4 2.8 1.31.82 1.75 LCE9WB9B

73.2 70.5 66.4 72.4 70.6 72.7 16H2.8 3.0 3.6 2.6-0.64 -0.24 LZEHE43E

73.3 75.3 74.3 75.7 74.7 75.5 152.5 1.1 2.9 1.10.27L 0.38 LCF7VYKG

66.9 69.1 68.2 67.3 67.9 67.9 161.7 1.0 1.9 1.2-1.27L -1.30 XXG1JYJ5

73.4 72.9 74.1 73.6 73.5 72.9 162.3 0.5 2.9 1.10.01L -0.19 TDGJUVMP

70.7 71.8 70.2 73.8 71.6 73.2 122.7 1.6 2.8 2.0-0.42 -0.12 LCHZ7UPY

71.8 72.6 71.3 71.1 71.7 71.4 152.1 0.7 1.9 1.3-0.41L -0.51 LCJU456J

80.1 80.4 77.7 79.7 79.5 80.4 163.9 1.2 3.4 2.81.36H 1.45 H MBTQUDQV

78.2 76.6 76.9 75.7 76.8 76.8 132.7 1.1 2.8 1.10.77 0.65 LZVXVMV6

74.6 76.7 73.0 77.0 75.3 76.9 163.0 1.9 2.5 1.80.42 0.68 LDWS2HCF

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

73.86

4.83

2.88

18

1

0

73.75

4.27

2.86

17

2

0

73.14

4.92

3.48

19

0

0

73.65

4.61

2.87

18

0

1

73.46 73.79

4.42 4.58

3.01 2.94

1.45 1.68

19 19

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Instrument Code List as Reported by the Labs

(LC) - L & W Crush Tester 48 (LD) - L&W Crush Tester 248

(LZ) - L & W Crush Tester (model not specified) (MB) - Messmer Buchel K440

(TB) - TMI Monitor/Compression Tester, 17-70 (TD) - TMI Digital Crush Tester, Model 17-09

(XX) - Instrument make/model not specified by lab

Page 36: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 255

Report #468 September 2008

Ring Crush (RCT), 26 lb Corrugating Medium - CM71TAPPI Official Test Method T822

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

34.6 34.6 37.4 36.8 35.8 * 35.3 163.4 1.4 3.9 1.3-2.41* * * -2.07* TB2U8UUS

32.1 31.2 34.8 38.4 34.1 X 34.1 163.1 3.2 3.3 2.1-3.23X X X -2.57* LC39CHLK

41.5 41.9 41.7 42.4 41.9 42.5 16L1.9 0.4 1.9 1.00.48 0.81 TD7LBXE5

41.5 41.0 39.6 39.6 40.4 41.6 163.1 1.0 2.9 1.9-0.21H 0.44 LC87FL3T

40.2 41.4 40.5 41.0 40.8 40.2 162.3 0.5 2.4 0.7-0.05 -0.13 LC895L61

42.4 41.9 41.7 40.6 41.7 42.1 162.1 0.8 2.1 0.80.37 0.63 LC8EVKEJ

41.4 41.9 42.4 39.8 41.4 40.0 162.5 1.1 3.2 1.20.25 -0.22 LDA13KXE

40.6 41.0 40.0 40.9 40.6 43.1 16L2.7 0.5 2.3 1.7-0.12 1.05 XXASZUJQ

41.9 42.8 42.9 42.7 42.6 41.1 16L1.6 0.5 1.7 1.50.81 0.23 LCDLSBY9

43.3 46.3 43.5 41.3 43.6 43.3 162.8 2.0 3.0 1.41.31 1.13 LCDZWNHE

39.7 41.5 40.4 39.2 40.2 41.4 161.5 1.0 2.7 1.6-0.32L L 0.37 ENFH2MXT

40.7 42.2 42.2 41.9 41.8 41.8 161.9 0.7 2.1 1.20.42 0.52 LZKS9Y1C

39.7 40.0 39.0 39.6 38.4 9L1.3 0.5 1.7 1.9-0.62L -0.84 XX No DataMFTLDG

45.6 45.6 * 41.1 8L2.7 0.0 2.6 3.82.24* 0.24 H LC No Data No Data No DataN5F4HN

34.9 36.4 41.5 36.9 37.4 38.3 163.7 2.9 2.9 4.8-1.65*H H -0.88 H LXNHB7F3

25.8 25.2 25.7 26.9 25.9 X 26.5 161.2 0.7 1.3 0.9-7.16X X X X -5.60X TMP793XZ

39.9 20.7 46.1 45.3 38.0 41.7 16H3.5 11.9 3.1 6.5-1.38XH * * 0.48 H LZPC8DAC

41.9 42.1 41.7 42.9 42.1 42.0 16L2.2 0.5 2.0 1.20.61 0.58 LCPG3E6Z

41.4 41.0 41.8 42.2 41.6 41.0 16L2.3 0.5 2.4 0.80.35 0.20 LDPQ5W7B

36.3 37.3 42.9 43.4 40.0 38.0 162.8 3.7 2.4 2.7-0.42 -0.99 LCRHREEU

41.8 42.5 40.8 40.8 41.5 42.8 162.7 0.8 2.6 2.00.29 0.93 MBRZ6UJX

40.3 41.0 40.7 39.1 40.3 40.2 161.7 0.8 1.6 0.9-0.28 -0.14 WKSSRAXC

43.4 44.4 42.0 41.4 42.8 43.8 162.1 1.3 1.9 1.00.92 1.31 LCWJPGZS

38.0 40.3 39.0 41.4 39.7 37.8 152.6 1.5 2.2 2.4-0.58 -1.09 LCX1Q9BY

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

40.26

2.45

2.42

21

1

2

41.13

2.64

2.42

19

2

3

41.57

1.98

2.50

22

0

2

40.77

2.07

2.68

22

1

1

40.87 40.51

2.09 2.50

2.51 2.54

2.93 2.35

22 23

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Page 37: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 255

Report #468 September 2008

Ring Crush (RCT), 26 lb Corrugating Medium - CM71TAPPI Official Test Method T822

Instrument Code List as Reported by the Labs

(EN) - Emerson 2200 Series (LC) - L & W Crush Tester 48

(LD) - L&W Crush Tester 248 (LX) - L & W 506

(LZ) - L & W Crush Tester (model not specified) (MB) - Messmer Buchel K440

(TB) - TMI Monitor/Compression Tester, 17-70 (TD) - TMI Digital Crush Tester, Model 17-09

(TM) - TMI/Hinde & Dauch (WK) - Zwick Z005 Crush Tester

(XX) - Instrument make/model not specified by lab

Page 38: Collaborative Testing Services, Inc. Containerboard ... · PDF fileCollaborative Testing Services, Inc. CONTAINERBOARD INTERLABORATORY TESTING PROGRAM INTRODUCTION The Interlaboratory

Containerboard Interlaboratory Testing ProgramAnalysis 261

Report #468 September 2008

STFI, 26 lb Corrugating Medium - CM71TAPPI Provisional Test Method T826

WebCodeWeekly Means

Week 1 Week 2 Week 3 Week 4 Mean SDrMonthly Results

SD WkCPVCumulative Results

Mean SDr SD Wk WksCPV Inst

14.9 14.8 14.5 15.0 14.8 14.6 151.2 0.2 1.0 0.30.40 0.10 LW6DLXRR

15.5 15.7 15.0 15.0 15.3 15.4 161.2 0.3 1.2 0.31.65 2.15* LW6MD937

14.1 13.7 13.9 14.0 141.0 0.3 1.1 0.2-1.58 -1.29 LU No Data No Data7XC87Y

14.8 15.0 14.7 14.4 14.7 14.4 161.1 0.3 1.1 0.40.35 -0.35 LUFYGRN7

14.5 14.0 13.8 14.8 14.3 14.4 161.1 0.5 1.1 0.5-0.79 -0.30 LWHTYCVJ

14.1 14.3 14.7 14.0 14.3 14.3 160.5 0.3 0.6 0.7-0.77L L -0.64 H LZKZ7QF8

15.0 14.9 14.7 14.5 14.8 14.7 161.2 0.2 1.1 0.30.47 0.31 LULLNDT5

16.1 17.4 16.5 16.7 X 16.4 131.4 0.6 1.3 0.94.89X X 4.56X H LW No DataRZA9VY

14.7 14.2 15.4 14.5 14.7 14.5 161.0 0.5 0.9 0.40.27 0.02 BKVGQ8SQ

Wk Mean

Avg SDrSD btwn Labs

Labs Incld

Labs ExcldLabs not rcvd

Month Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

14.87

0.64

1.13

9

0

0

14.58

0.63

1.00

8

1

0

14.69

0.49

1.15

7

1

1

14.60

0.34

0.99

7

1

1

14.60 14.53

0.42 0.40

1.06 1.03

0.34 0.41

8 8

Grand Mean

Avg SDr

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Instrument Code List as Reported by the Labs

(BK) - Buchel Strip Compression Tester BK-155 (LU) - L & W 52 without moisture correction (was 53)

(LW) - L & W 53 with moisture correction (was 53M) (LZ) - L & W (model not specified)