State system for ensuring the uniformity of measurements. Installations of the highest accuracy for the reproduction of physical quantity units. Order of development, certification, registration, storage and application
Construction work and typical technological processes. Quality control of hidden works by geophysical methods in the construction of underground facilities
Connecting devices for low voltage circuits for household and similar purposes. Part 2-2. Particular requirements for connecting devices as separate entities with screwless-type clamping units
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