Services of housing maintenance, public utilities and administration of apartment buildings. Services content in-house power supply systems of apartment buildings. General requirements
Tests for electric and optical fibre cables under fire conditions. Circuit integrity. Part 21. Procedures and requirements. Cables of rated voltage up to and including 0,6/1,0 kV
State system for ensuring the uniformity of measurements. State special standard and state verification schedule for measuring means of hardness on Brinell scales
State system for ensuring the uniformity of measurements. Optics and optical instruments. Field procedures for testing geodetic and surveying instruments. Part 3. Theodolites
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