This paper presents a simple method of using physiologically inert helium as a diluant in a respirable mixture of air, and then detecting the amount of helium leaking into the respirator facepiece with a mass spectrometer helium leak detector equipped with a special sampling and calibration system.
Facepiece-to-face leakage evaluation using a helium leak detection method
Berechnung der Ableitung zwischen Gasmaske-Gesicht mittels Heliumleckerkennung
Journal of Vacuum Science and Technology ; 12 , 1 ; 419-422
1975
4 Seiten, 1 Bild, 1 Tabelle, 5 Quellen
Article (Journal)
English
LECK , HELIUM , ATMUNG , SICHERHEIT , DETEKTOR , SCHUTZMASSNAHME , SCHUTZ , GAS , SCHUTZGERAET , INERTGAS , LUFT , MASSENSPEKTROMETER , DICHTIGKEIT , GASMASKE , GESICHT
Helium Mass-Spectrometer Leak Detection
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