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State system for ensuring the uniformity of measurements. Flow rate and volume of gas. Measurement procedure (method) using ultrasonic flow transducers
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Hand-held motor-operated electric tools. Safety. Part 2-21. Particular requirements for drain cleaners
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Informational ensuring of equipment and operational activity. System "man-information",. Selective implementation of information activities
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Furniture for seating and lying. Method for determination of residual deformation of unsprung upholstered units
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