Helium Leak Detector Rate Calculator
Nondestructive testing & vacuum integrity: Calculate calibrated helium leak rates ($Q_{He}$), conversion to equivalent standard air leak rates ($Q_{air}$), and accumulation volume rise.
Calibrated Leak & Detector Signal
Test Gas Concentration & Flow Regime
100% pure He or forming gas (e.g. 5% He in N₂)
Helium & Equivalent Air Leak Rate
Helium Leak Rate Q_He:
--
mbar · L / s
Equivalent Air Rate Q_air:
--
std cc/s (atm·cm³/s)
Sensitivity Factor:
--
pA / (mbar·L/s)
Net Test Signal:
--
S_test - S_bg
Pa·m³/s:
--
SI leak rate
Leak Severity Rating
Hermeticity Classification:
--
Annual Loss of 1 Bar Gas:
--
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