If you are talking about simple volume measurements, the conversion is correct. However, I suspect you may be comparing Normal Cubic Meters to Standard Cubic Feet, as might be used for flow rates of, say, natural gas. There are slight differences in the reference pressures and temperatures, which makes a slight difference in these flow rates. Actually, these are usually expressed in NM^3/day or SCF/day (or hour)
Thanks for all who respond to my thread,
Speco you are some what correct assuming that this conversion is for gas flow. but it it from normal cubic meter to normal cubic feet. i further explain , We have gas flow meter installed provided by gas company. The meters are with pressure and temprature compensation means m3 reading is final. Problem is that gas company started new formula for billing. They are charging for mmbtu. they have to convert our m3 reading in cubic feet and the using the formula MMBTU=consumption in cubic feet x average gross CF(GCV)/1000,000. they are using the converison factor 1m3=35.49390 cubic feet. This the thing which isincreasing our monthly bill .5% from normal. I discuss the company but they insist that the conversion factor is correct. I hope u all now understand the situation .
need ur syggestion.
For a more exact conversion of U.S. units to SI units, Perry VI states 1 ft[sup]3[/sup]=0.02831685 m[sup]3[/sup]. Thus 1 m[sup]3[/sup]=35.3147 ft[sup]3[/sup]. Good luck.
also... if they are charging per MMBTU how is the BTU content of the gas measured?
gas companies many times inject CO2 to maintain the pipeline pressure!!!
having said so, the only true billing would be to have an on line btu/cuft (cromatograph) measurement and then calculate the weighted average of BTU/cuft and flow over time.