1. Not more than 5 grains total sulphur per ccf
2. Not more than 1/4 grain H2S ccf
3. Not more than 1 grain mercaptan sulphur per ccf
4. Btu (minimum 950, maximum 1100) at 14.65 psi dry
5. Temperature (maximum +120 degrees F, minimum +40 degrees F)
6. Not more than 2% by volume CO2
7. Not more than .05% by volume oxygen
8. Not more than 7# water vapor per Mmcf
9. Interchangeability (IF): ±7% from current gas supply
   IF = Btu divided by v relative density.
10. HydrocarbonDew Point not more than +40 degrees F at delivery pressure
11. Not more than 4% by volume total non-hydrocarbon and inert gases

Gas must be of merchantable quality, and commercially free from all water, sand and other objectionable fluids, bacteria, solids and gases.