A Alink 2000 Metrologia 37 35 doi:10.1088/0026-1394/37/1/5
A Alink
Show affiliationsThis paper reports the results of the first key comparison of primary standard gas mixtures (PSMs), held under the auspices of the Consultative Committee for Amount of Substance (CCQM). PSMs are (national) measurement standards for the realization of specific gas mixture compositions. This key comparison, registered at the Bureau International des Poids et Mesures (BIPM) as CCQM-K1.a-g, encompasses thirteen different gas mixture compositions. In total, 125 transfer standards were prepared and distributed among ten participating institutes. The results show that joint activities in the development and maintenance of PSMs lead to a relative agreement within 10-2 of the reference values for the results of the international comparison.
Issue 1 (February 2000)
A Alink 2000 Metrologia 37 35
W Arter 1995 Rep. Prog. Phys. 58 1
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