1985GOST 8.448-1985 State system for ensuring the uniformity of measurements. The calorimetric measuring primary transducers. Method of verification
0000 GOST 8.448-1981
GOST 8.448-1985 State system for ensuring the uniformity of measurements. The calorimetric measuring primary transducers. Method of verification was changed to API MPMS 14.9-2013 Measurement of Natural Gas by Coriolis Meter (Second Edition).