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State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 4. Reference levels for narrow-band masking noise

Document status: Active

Cleanrooms and associated controlled environments. Part 4. Design, construction and start-up

Document status: Replaced by GOST R ISO 14644-4-2025

Safety of machinery. Reduction of risks to health from hazardous substances emitted by machinery. Part 2. Choice procedure of verification methods

Document status: Active

Surgical sutures. General technical requirements. Test method

Document status: Active

Soils. General requirements for the fulfillment of analyses

Document status: Active

Ergonomics of the thermal environment. Determination of metabolic rate

Document status: Active