INFICON
Checkout Gases and Replacement Parts | 13
074-594-P1H Micro GC Fusion Operating Manual
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13.1.2 Natural Gas Checkout Gas
Natural gas checkout gas simulates the content of pipeline quality natural gas. It
contains fixed gases and C1-C7 components in a methane balance. See the table
below for the component concentrations.
Natural gas 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 %)
nitrogen
1.50%
methane
balance
ethane
9.00%
carbon dioxide
1.50%
propane
6.00%
isobutane
3.00%
n-butane
2.00%
isopentane
1.00%
n-pentane
0.50%
n-hexane
0.10%
n-heptane
0.05%