This standard specifies the comparative method for determining the composition of standard gas mixtures. This standard applies to the determination of the concentration of each component in the gas mixture. However, the accuracy of each concentration value can vary considerably depending on the type of apparatus used.
GB/T 10628-1989 history
2008GB/T 10628-2008 Gas analysis.Comparison methods for determining and checking the composition of calibration gas mixtures
1989GB/T 10628-1989 Gas analysis--Determination of composition of calibration gas mixtures—Comparison methods