GN 221 - Calibration of Inspection, Measuring & Test Equipment
- Details
- Category: Design, Materials, Manufacture and Installation
|
APEK |
CALIBRATION OF INSPECTION, MEASURING & |
APEK GN 221 Rev 1 Issued: 22/04/2013 |
Developed for: ACA, AICIP, AIES, AINDT, CAAA, Eng Aust, Met. Aust, NATA, Stds Aust, WTIA, & PE Industry & Regulators
1. Scope
2. Background
3.
TABLE 1 CALIBRATION
|
EQUIPMENT (Note 1) |
CALIBRATION PERIOD (Notes 2, 3 & 4) |
CALIBRATED BY |
METHOD CHECK WITH (Notes 5 & 6) |
MAXIMUM DEVIATION |
|
TEST INSTRUMENTS |
|
|
|
|
|
Dial gauges & Micrometers |
2 years |
Quality Officer |
Std test block |
±0.01mm |
|
Verniers |
2 years |
Quality Officer |
Std Test block |
±0.01mm |
|
Test block |
10 years |
Sub-contractor |
Master gauge |
±0.01mm |
|
Thread plug gauges |
1 year |
Sub-contractor |
Master gauge |
See standard |
|
Electrical tong tester |
2 years |
Sub-contractor |
Master ammeter |
± 2% |
|
Test voltmeter |
2 years |
Sub-contractor |
Master voltmeter |
±1% |
|
Digital temperature meter |
1 year |
Sub-contractor |
Master thermometer |
±1% |
|
Timing devices |
1 year |
Quality Officer |
Telecom Time Signal |
±1 sec in 10 mins |
|
Pressure gauges: |
|
|
|
|
|
3 years |
Sub-contractor |
Calibrated tester |
±0.5% |
|
1 year |
Quality Officer |
Master gauge |
±1% |
|
Load measurement |
1 year |
Quality Officer |
Test weight |
±0.5% |
|
Temperature recorders |
1 year |
Sub-contractor |
Test current |
±2.0% |
|
& thermocouples |
1 year |
Sub-contractor |
Test current |
±5ºC |
|
Destructive Equipment |
3 years |
Sub-contractor |
Load cells |
±0.5% |
|
NDT Equipment |
NATA Registration requirements apply |
|
See test details |
|
|
Test software * |
Not normally required |
User |
Operation of Programme |
|
|
FABRICATION INSTRUMENTS |
|
|
|
|
|
Steel tapes & rulers * Dial gauges & micrometers Verniers |
When purchased 1 year
1 year
|
Quality Officer Quality Officer
Quality Officer
|
Master Tape or Rule Std test block
Std test block |
± 0 5mm over 5m |
|
Protractors/squares |
1 year |
Fabrication Foreman |
Master protractor/ reversal |
±1º |
|
Spirit levels |
1 year |
Fabrication Foreman |
Reversal of level |
±1 in 100 |
|
Weld gauges |
1 year |
Welding Foreman |
With Ruler |
±0.5mm |
|
Welding machines:
|
6 months 6 months 1 year |
Welding Foreman Welding Foreman Welding Foreman |
Tong tester Test Voltmeter Measure over 10 secs |
±5% ±2V ±2.5% |
|
Electrode Ovens |
1 year |
Quality Officer |
Temperature distribution |
±5º |
|
Thermometers |
6 months |
Quality Officer |
Temperature indicator |
±5% |
|
Gas flow meters |
(See note 4) |
Welding Foreman |
Master flow meter |
±10% |
|
Jigs, fixtures & templates |
As required |
Fabrication Foreman |
As required |
As required by Contract |
Notes:
- All equipment, other than with *, require identity number, calibration status label/sticker and date of next calibration.
- Equipment to be calibrated before initial use. Zero checks are needed before & after each series of tests.
- Maximum period between calibrations shall be the above calibration period plus 10%. Operational experience and frequent use may indicate that a shorter period is necessary.
- If the equipment is damaged or its accuracy is doubted, examine and calibrate as soon as possible.
- Master gauges or equipment are for calibration only, not for production use. Sub-contractor calibrations should be to recognised National Standards or equivalent to the above.
- Sub-contractor calibrations should be recognised to National Standards (See Section MM-18)