Standard Swedish standard · SS-EN ISO 20486:2018

Non-destructive testing - Leak testing - Calibration of reference leaks for gases (ISO 20486:2017)

Status: Valid

Buy this standard

Standard Swedish standard · SS-EN ISO 20486:2018

Non-destructive testing - Leak testing - Calibration of reference leaks for gases (ISO 20486:2017)
Subscribe on standards - Read more Dölj
Price: 1 320 SEK
standard ikon pdf

PDF

Price: 1 320 SEK
standard ikon

Paper

Price: 2 112 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less
Preview this standard
Scope
ISO 20486:2017 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.
Figure 1 gives an overview of the different recommended calibration methods.

Subjects

Non-destructive testing (19.100)


Buy this standard

Standard Swedish standard · SS-EN ISO 20486:2018

Non-destructive testing - Leak testing - Calibration of reference leaks for gases (ISO 20486:2017)
Subscribe on standards - Read more Dölj
Price: 1 320 SEK
standard ikon pdf

PDF

Price: 1 320 SEK
standard ikon

Paper

Price: 2 112 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less

Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80001269

Edition: 1

Approved: 2/14/2018

No of pages: 48

Replaces: SS-EN 13192 , SS-EN 13192