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Norm
ÖNORM EN ISO 20486
Issue date: 2018 05 15
Non-destructive testing - Leak testing - Calibration of reference leaks for gases (ISO 20486:2017)
This document specifies the calibration of those leaks that are used for the adjustment of leak detectors for the determination of leakage rate in everyday use. One type ...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 40 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This document specifies the calibration of those leaks that are used for the adjustment of leak detectors for the determination of leakage rate in everyday use. One type of calibration method is a comparison with a reference leak. In this way, the leaks used for routine use become traceable to a primary standard. In other calibration methods, the value of vapour pressure was measured directly or calculated over a known volume.
The comparison procedures are preferably applicable to helium leaks, because this test gas can be selectively measured by a mass spectrometer leak detector (MSLD) (the definition of MSLD is given in ISO 20484).
Calibration by comparison (see methods A, As, B and Bs below) with known reference leaks is easily possible for leaks with reservoir and leakage rates below 10-7 Pa·m³/s.
ÖNORM EN ISO 20486
2018 05 15
Non-destructive testing - Leak testing - Calibration of reference leaks for gases (ISO 20486:2017)
Norm
↖
ÖNORM EN 13192
2004 05 01
Non destructive testing - Leak testing - Calibration of reference leaks for gases (EN 13192:2001 + A...
Norm
ÖNORM EN 13192
2002 07 01
Non destructive testing - Leak testing - Calibration of reference leaks for gases
Norm
Norm
Issue date :
2017 12 14
Non-destructive testing — Leak testing — Calibration of reference leaks for gases
