Standard Practice for Leaks Using the Mass Spectrometer Leak Detector in the Detector Probe Mode

Importancia y uso:

6.1 Test Method A is frequently used to test large systems and complex piping installations that can be filled with a trace gas. Helium is normally used. The test method is used to locate leaks but cannot be used to quantify except for approximation. Care must be taken to provide sufficient ventilation to prevent increasing the helium background at the test site. Results are limited by the helium background and the percentage of the leaking trace gas captured by the probe.

6.2 Test Method B is used to increase the concentration of trace gas coming through the leak by capturing it within an enclosure until the signal above the helium background can be detected. By introducing a calibrated leak into the same volume for a recorded time interval, leak rates can be measured.

Subcomité:

E07.08

Referida por:

E2533-21, E2982-21

Volúmen:

03.03

Número ICS:

71.060.01 (Inorganic chemicals in general)

Palabras clave:

bell jar leak test; bomb mass spectrometer leak test; helium leak test; helium leak testing; leak testing; mass spectrometer leak testing; sealed object mass spectrometer leak test;