气体流量量值溯源体系探讨

Traceability system about gas flow

介绍了气体流量量值溯源中的关键环节,并对各环节的国际发展趋势进行了简单介绍.

The gas flow test facilities and its traceability are described in the paper. The primary standards of gas flow are piston prover or bell prover generally. The secondary standards are turbine meters or sonic nozzles. The paper also gives the introduction about the comparison of gas flow between different facilities.