Russian standards PDF
State system for ensuring the uniformity of measurements. Characterization of the performance of illuminance meters and luminance meter
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Measuring, operating and controls for heating systems. Part 5. Start-stop schedulers for heating systems
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Building acoustics. Estimation of acoustic performance of buildings from the performance of elements. Part 3. Airborne sound insulation against outdoor sound
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Ambient air quality. Diffusive samplers for the determination of concentrations of gases and vapours. Part 2. Specific requirements and test methods
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Air filters for general air cleaning. Terms and definitions
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Underground mines. Explosion prevention and protection systems. Equipment and protective systems for firedamp drainage
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