Help
Help
(OP)
Dear All,
We want to know what is sample gas, zero gas, span gas, fuel gas in gas induatrial.
regards
Anung
We want to know what is sample gas, zero gas, span gas, fuel gas in gas induatrial.
regards
Anung
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RE: Help
I guess they mean
sample gas : 1) a quantity of gas taken from a specific point of the pipeline, used for various calculations e.g gross heating capacity, density, phasmatographic analysis. 2) a quantity of gas taken from a finite space (room, chamber, vessel) used for calculating the existance and the percentage of (natural) gas in this finite space
zero gas : We say that an environment has zero gas when we measure with an appropriate device (explosive-meter) 0% gas.
span gas : Usually the devices that detect and measure gas do not range from 0% to 100%, but let's say from 0% to 4.5% because for natural gas 4.5% is the lower explosive limit. In order to calibrate this device you need to have a prototype gas with exactly 4.5%. This prototype gas is called "span" gas because it is used to calibrate the span of the metering device.
fuel gas : gas which is used as a fuel (sorry, can not make it more simple)