CQI-9 Special Process: Heat Treat System Assessment, 2nd Edition Errata Sheet Page Item # Original Language (see BOLD) Corrected Version Language (see highlight) 17 3.5.5 Section 3.5.5 Initial TUS

Minimum and maximum temperature ranges shall be tested per AMS 2750D. Exception: If the operating range of the Qualified Work Zone is equal to or less than 85oC (153oF) then only one temperature is required to be tested. The temperature shall be within the operating range of the Qualified Work Zone.

Section 3.5.5 Initial TUS Minimum and maximum temperature ranges

shall be tested per AMS 2750D. Exception: If the operating range of the Qualified Work Zone is equal to or less than 170oC (306oF) then only one temperature is required to be tested. The temperature shall be within the operating range of the Qualified Work Zone.

17 3.5.6 Section 3.5.6 Periodic TUS (For CQI-9, a minimum of once per year periodic TUS is required)

- Minimum and maximum temperature ranges shall be tested per AMS 2750D. Exception: If the operating range of the Qualified Work Zone is equal to or less than 85oC (153oF) then only one temperature is required to be tested. The temperature shall be within the operating range of the Qualified Work Zone.

Section 3.5.6 Periodic TUS (For CQI-9, a minimum of once per year periodic TUS is required)

Minimum and maximum temperature ranges shall be tested per AMS 2750D. Exception: If the operating range of the Qualified Work Zone is equal to or less than 170oC (306oF) then only one temperature is required to be tested. The temperature shall be within the operating range of the Qualified Work Zone.

43 A1.9 All hardness test equipment (for each scale used) shall be calibrated semi-annually minimum, and verified daily minimum per the applicable ASTM standard.

All hardness test equipment (for each scale used) shall be calibrated annually minimum, and verified daily minimum per the applicable ASTM standard.

48 B1.7 All hardness test equipment (for each scale used) shall be calibrated semi-annually minimum, and verified daily minimum per the applicable ASTM standard.

All hardness test equipment (for each scale used) shall be calibrated annually minimum, and verified daily minimum per the applicable ASTM standard.

54 C1.3 All hardness test equipment (for each scale used) shall be calibrated semi-annually minimum, and verified daily minimum per the applicable ASTM standard.

All hardness test equipment (for each scale used) shall be calibrated annually minimum, and verified daily minimum per the applicable ASTM standard.

58 D1.2 All hardness test equipment (for each scale used) shall be calibrated semi-annually minimum, and verified daily minimum per the applicable ASTM standard.

All hardness test equipment (for each scale used) shall be calibrated annually minimum, and verified daily minimum per the applicable ASTM standard.

62 E1.8 All hardness test equipment (for each scale used) shall be calibrated semi-annually minimum, and verified daily minimum per the applicable ASTM standard.

All hardness test equipment (for each scale used) shall be calibrated annually minimum, and verified daily minimum per the applicable ASTM standard.

65 E4.2 Every 2 hours minimum Every 4 hours minimum

CLARIFICATION TO "GENERAL NOTES FOR AMS 2750D" PAGES 16 & 17, CQI-09 2nd Edition

General Notes for AMS 2750D AMS 2750D is referenced in the Pyrometry Section (Section 2.0) of the Process Tables. Heat treat suppliers are not required to comply to all sections of AMS 2750D. Heat treat suppliers shall comply to the sections of AMS 2750D that are given below. These sections reference thermocouples, the calibration of thermocouples and instrumentation, and the procedure for conducting furnace temperature uniformity surveys (TUS).

Thermocouples and Instrumentation - Section 3.1 Temperature Sensors (Thermocouples) - Section 3.2 Instrumentation - Note: Frequency reductions per AMS 2750D are not

allowed by CQI-9 Compliance to the following sections in 3.2, are not required by CQI-9 Section Number Explanation 3.2.5.1 & 2 Temperature controlling instruments purchased prior to 1 year after

the release of AMS 2750D are exempt of 3.2.5.1 and 3.2.5.2. 3.2.5.3.1 One point sensor input is acceptable. 3.2.5.5 Sensitivity checks during calibration are not required.

CLARIFICATION TO "GENERAL NOTES FOR AMS 2750D" PAGES 16 & 17, CQI-09 2nd Edition

System Accuracy Test (SAT) Procedure (Section 3.4) NOTE: Refer to AMS 2750D as directed

- SAT shall be performed by one of the two methods listed below:

1) Probe Method: The temperature indication of the furnace control instrument connected to the

control sensor (CS) shall be within +/- 5C (or +/- 10F) of the corrected temperature indication of the test sensor (TS) on a test instrument. This test shall be performed monthly at a typical operating temperature utilizing the procedures detailed in AMS 2750D Section 3.4.4, System Accuracy Test Procedure.

SAT Frequency:

o Equipment operating at or above 760C (1400F) shall be checked monthly. o Equipment operating below 760C (1400F) shall be checked quarterly.

15001501

Note: The test sensor can be aNote: The test sensor can be aresident thermocouple, refer to resident thermocouple, refer to AMS 2750 D section 3.4.4.2.1AMS 2750 D section 3.4.4.2.1

Control Instrument

Control Sensor

Over-Temp Sensor

Part or RawMaterial

FurnaceWork Zone

Chart Recorder

Over TempProtection Furnace Wall

Example of Probe Method

Test Instrument

Lead Wire

Test Sensor

EXAMPLE OF SYSTEM ACCURACY TEST (SAT)

CONTROL INSTRUMENT

TEMPERATURE INDICATION

(A)

TEST INSTRUMENT

TEMPERATURE INDICATION

(B)

TEST SENSOR CORRECTION

FACTOR (C)

TEST INSTRUMENT CORRECTION

FACTOR (D)

TRUE TEST TEMPERATURE

(E)=(B)+(C)+(D)

SAT DIFFERENCE

(A) (E)

900oC (1652oF)

901.5oC (1655oF)

-0.5oC (-1.0oF)

+0.1oC (+0.2oF)

901.1oC (1654.2oF)

-1.1oC (-2.2oF)

A

B

CLARIFICATION TO "GENERAL NOTES FOR AMS 2750D" PAGES 16 & 17, CQI-09 2nd Edition

2) Comparative Method: The relationship between the control system (sensor, leadwire, control

instrument) and any other permanently installed monitoring system such as over temperature control system (sensor, leadwire, over temp instrument) or a load monitoring system (sensor, leadwire, recording instrument) etc. at the time of the most recent conforming instrument calibration test shall be established. This established relationship shall not differ by more than +/-1C (or +/-2F) when checked weekly at a typical operating temperature.

15001501

Note: It is strongly recommended thatNote: It is strongly recommended thatthe comparative check be performed at or near the original tempthe comparative check be performed at or near the original temperatureerature

Control Instrument

Control Sensor

Over-Temp Sensor

Part or RawMaterial

FurnaceWork Zone

Chart Recorder

Over TempProtection Furnace Wall

Example of Comparative Method

Other permanently installed thermocouple (If utilized)

- Any actions to correct a failing reading or validate a test result shall be documented. - Control Sensors (CS) failing to meet the requirements of SAT method 1 shall be changed. A

new TUS is not required unless the position of the control sensor changes. If new thermocouple(s) are required in Test method 2, a new relationship must be established.

- Thermocouple Replacement Schedule:

o Base metal sensors (e.g. Type K, N, J, E) thermocouples shall be changed when needed or annually at a minimum for equipment operating at or above 760C (1400F).

o Base metal sensors (e.g. Type K, N, J, E) thermocouples shall be changed when needed or every two years at a minimum for equipment operating below 760C (1400F).

o Noble metal sensors (e.g. Type R and S) thermocouples shall be changed when needed or every two years at a minimum for equipment operating at or above 760C (1400F).

o Note: A new TUS is not required for any thermocouple replacement unless the position of the control sensor(CS) is changed (CS)

CLARIFICATION TO "GENERAL NOTES FOR AMS 2750D" PAGES 16 & 17, CQI-09 2nd Edition

Furnace Temperature Uniformity Survey (TUS)

o Section 3.5.2 Multiple Qualified Operating Temperature Ranges o Section 3.5.3 Furnace Modifications o Section 3.5.4 Furnace Repairs o Section 3.5.5 Initial TUS

Minimum and maximum temperature ranges shall be tested per AMS 2750D.

Exception: If the operating range of the Qualified Work Zone is equal to or less than 170oC (306oF) then only one temperature is required to be tested. The temperature shall be within the operating range of the Qualified Work Zone.

o Section 3.5.6 Periodic TUS (For CQI-9, a minimum of once per year periodic

TUS is required)

Minimum and maximum temperature ranges shall be tested per AMS 2750D. Exception: If the operating range of the Qualified Work Zone is equal to or less than 170oC (306oF) then only one temperature is required to be tested. The temperature shall be within the operating range of the Qualified Work Zone.

o Section 3.5.8 Furnace Parameters During TUS o Section 3.5.9 Furnace Temperature at Insertion of TUS Sensors (Thermocouples) o Section 3.5.10 Load Condition o Section 3.5.11 Furnace Atmosphere During TUS o Section 3.5.13 Batch Furnaces, Salt Baths, Controlled Temperature Liquid Baths, and

Fluidized Bed Furnaces EXCEPT:

3.5.13.3.2: CQI-9 requires that data from the TUS sensors is automatically recorded.

o Section 3.5.14 Continuous and Semi-Continuous Furnaces o Section 3.5.15 Alternative Testing Methods for Continuous and Semi-Continuous

Furnaces or Furnaces with Retorts or Muffles o Section 3.5.16 Temperature Uniformity Survey Sensor Failures o Section 3.5.18 Relocation of Hot or Cold Recording Sensors for Class A or C

Instrumentation o Section 3.5.20 Temperature Uniformity Survey Instrumentation o Section 3.5.21 Temperature Uniformity Survey Report