Gas Conversion Factors
To determine corrected flowrate: find the gas for which the meter is calibrated in the left column,move to the right to the gas that is being used. Multiply the flowrate indicated on the meter by
the correction factor. This will equal an approximation of the flowrate of the gas being used.
Please note: this correction factor is only accurate within ±10%.
This is also inaccurate for extremely low flow, or elevated pressure;
consult factory for your specific condition.
| Gas being used / S.G. | ||||||||||||||||||||||||||||||||
| Gas for which meter is calibrated |
H2 |
Cracked Ammonia |
Methane |
Ammonia |
Gas | Neon | Acetylene | N2 or O2 | Air | Ethane | O2 | Argon | CO2 or N2O | Propane | Butane | |||||||||||||||||
| 0.070 | 0.294 |
0.554 |
0.588 |
0.620 |
0.700 |
0.899 |
0.967 |
1.000 |
1.038 |
1.105 |
1.520 |
1.523 | 1.523 | 2.007 |
||||||||||||||||||
| Air | 3.78 | 1.84 | 1.34 | 1.30 | 1.27 | 1.20 | 1.05 | 1.02 | 1 | 0.98 | 0.95 | 0.85 | 0.81 | 0.81 | 0.71 | |||||||||||||||||
| Oxygen | 3.97 | 1.94 | 1.41 | 1.37 | 1.34 | 1.26 | 1.11 | 1.07 | 1.05 | 1.03 | 1 | 0.90 | 0.85 | 0.85 | 0.74 |
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Calculating Conversion Factors
Based on Specific Gravity
