Norm

ISO/DIS 20486:2016 en

Non-destructive testing - Leak testing - Calibration of reference leaks for gases

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Over deze norm

Status Ontwerp
Aantal pagina's 30
Gepubliceerd op 04-09-2016
Taal Engels
This draft European Standard 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 standard leak. In this way the leaks used for routine use become traceable to a primary standard as the ISO 9000 series of standards require. At other calibration methods the QpV was measured directly or the QpV was 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 MLSD is given in ISO/DIS 20484). Calibration by comparison (see methods A, As B and Bs below) with known standard leaks is easily possible for leaks with reservoir and leakage rates below 10-7 Pa·m3/s.

Details

ICS-code 19.100
Nederlandse titel Non-destructive testing - Leak testing - Calibration of reference leaks for gases
Engelse titel Non-destructive testing - Leak testing - Calibration of reference leaks for gases

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