State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring absolute pressure within the range of 1x10 in minus 8 degree up to 1x10 in 3 degree Pa
Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 4. Resistance of earth connection and equipotential bonding
State system for ensuring the uniformity of measurements. Software of measuring instruments. Algorithms of processing, storage, protection and transmission of measuring information. Evaluation procedure