Unified system of technological documentation. General requirements for completeness and arrangement of sets of documents on typical and group technological processes (operations)
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 1. General requirements
State system for ensuring the traceability of measurements. Gas analyzers and gas alarm devices for determination of combustible gases and vapors in working zone air. Verification procedure
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