Quality Specifications
| SI No. | Characteristic | Requirement |
|---|---|---|
| i) | Moisture, mg/m3, Max | 5 |
| ii) | Methane, mole percent, Min | 95 |
| iii) | H2S, mg/m3, Max | 3.7 |
| iv) | Total sulphur* (including H2S), mg/m3, Max | 10 |
| v) | CO2 + N2 + O2, mole percent, Max | 5 |
| vi) | Only CO2, mole percent, Max | 4 |
| vii) | Oxygen, mole percent, Max | 0.5 |
*Total sulphur includes the sulphur content of odorant.
| Threshold limit for gas parameters on City or Local Natural Gas Distibution | |
| Parameters | Limit |
| Hydrocarbon dew point (Degree Celsius, Max.) | 0 |
| Water dew point (Degree Celsius, Max.) | 0 |
| Hydrogen Sulphide (ppm by wt, max) | 5 |
| Total Sulphur (ppm by wt, max) | 10 |
| Carbon dioxide (mol%, max.) | 6 |
| Total inerts (mol%) | 8 |
| Temperature (Degree Celsius , max.) | 55 |
| Temperature (Degree Celsius , min.) | 10 - 20 |
| Oxygen (mol%. vol. max.) | 0.2 |
| Wobbe Index (for domestic consumers), MJ/SCM | 39-53 |