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Acoustics. Determination of sound emission from sound sources placed close to the ear. Part 2. Technique using a manikin
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State system for ensuring the uniformity of measurements. Digital oscilloscopes. Verification procedure
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System of design documents for construction. General principles
Document status: Replaced by GOST R 21.001-2021
State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of aerosols, suspensions and powdery materials
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