Helium leak detection and halogen leak detection?
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In what situations are helium leak detection and halogen leak detection suitable? What does it take to be considered qualified? Are there any standards?
Question 1: In what situations are helium leak detection and halogen leak detection suitable? Answer 1: The minimum leak rate that can be detected by the halogen leak detection test (10-4 to 10-6 cm3/s) is suitable for devices that require a high level of tightness. The minimum leak rate that can be detected by helium leak testing (10-6 to 10-9 cm3/s) is suitable for equipment with higher requirements for density, such as containers holding highly volatile and hazardous substances. Question 2: What does it take to be considered qualified? Are there any standards? Answer 2: I’m not quite sure if there are any standards; it should meet the standards to be considered qualified.
Halogen methods are mostly used for rough leak detection, with low precision, around -6 pAm3/s. Helium detection is generally used for precise detection, achieving a precision of up to -13
We have used helium leak detection, usually when pressure retention in the system fails and bubble leak detection cannot locate the leak; it is very sensitive. There are two types: positive-pressure helium leak detection and vacuum helium leak detection.
Hydrogen leak detectors are less expensive than helium mass spectrometers and do not require a recovery system. http://www.cjkj88.com/