GOST R 8.870-2014 State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring of sound velocity in liquids within the velocity range 800 to 2000 m/s
2014GOST R 8.870-2014 State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring of sound velocity in liquids within the velocity range 800 to 2000 m/s