Comparison of the gas mass flow calibration systems of the BNM-LNE and the PTB

Author： Knopf D.   Barbe J.   Richter W.   Marschal A.  

Publisher： IOP Publishing

ISSN： 0026-1394

Source： Metrologia, Vol.38, Iss.3, 2001-06, pp. : 197-202

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