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
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 -
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
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).
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
Top Related