13 | Checkout Gases and Replacement Parts
INFICON
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074-594-P1H Micro GC Fusion Operating Man-
ual
13.1.1 Universal Checkout Gas
Universal checkout gas contains fixed gases and C1-C6 components in a nitrogen
balance. See the table below for the component concentrations.
Universal checkout gas is not intended to be a substitute for a calibration
standard for any specific applications. INFICON recommends acquiring a
calibration standard gas that meets composition requirements appropriate for
the specific application.
Components
Concentration (Mole %)
hydrogen
10.00%
oxygen
1.00%
nitrogen
balance
methane
5.00%
ethane
0.10%
ethylene
0.20%
carbon dioxide
1.00%
carbon monoxide
1.00%
acetylene
0.05%
propane
0.1%
propylene
0.05%
n-butane
0.05%
n-pentane
0.05%
n-hexane
0.05%