Russian standards PDF
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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State system for ensuring the uniformity of measurements. Autocollimators. Verification Procedure
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State system for ensuring the uniformity of measurements. Crude oil. Pipeline sampling
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State system for ensuring the uniformity of measurements. The volume of natural gas. Method of error calculations in measurements of natural gas volume at reference conditions. Basic principles
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State system for ensuring the uniformity of measurements. Ultrasonics. Methods of conditioning of water for ultrasonic measurements
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State system for ensuring the uniformity of measurements. Indicating pressure gauges. Ordinary measuring instruments. Metrological requirements and test methods
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