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State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 1. Reference equivalent threshold sound pressure levels of pure tones for supra-aural earphones
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Products of wood and wooden materials. Non-specified limiting deviations and tolerances
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Electrically propelled road vehicles. Safety specifications. Part 3. Electrical safety. Electrical circuits of electrical distribution systems and electrically conductive auxiliary electrical systems
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