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State system for ensuring the uniformity of measurements. Air ion composition measurements. Method of measuring volume density of electric charge of air and air ion concentration using aspiration capacitor
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Heat exchangers. Forced circulation air-cooling and air-heating coils. Test procedures for establishing the performance
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Zinc antifriction alloys. Marks, technical requirements and test methods
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State system of ensuring the uniformity of measurement. Measuring condenser microphones. Methods and means of verification
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Information technology. Sensor networks. Testing framework
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