Helium Mass Positive Pressure

Helium Mass Positive Pressure, Total:3 items.

The international standard classification for "Helium Mass Positive Pressure" includes: Ground service and maintenance equipment .

The Chinese standard classification for "Helium Mass Positive Pressure" includes: Pressure vessel , Ground test equipment .

Professional Standard - Aerospace

• QJ 3088-1999 Calibration Method for Positive Presure Standard Leak Hole
• QJ 3089-1999 Method for Positive Presure Leakage Detection of Helium Mass Spectrum
• QJ 3212-2005 Test methods for leaks using the helium mass spectrometer leak detector in the inside-out testing mode

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