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State system for ensuring the uniformity of measurements. Glass electrodes, including combination electrodes, for pH measurement in aqueous solutions. Verification procedure
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Rubber products for children. Determination of phthalic anhydride
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Natural gas. Determination of water vapors content by sorption methods
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Meat products. Methods of penetration determination by means of the cone and the needle indenter
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Gas distribution systems. Requirements for gas consumption networks. Part 4. Operation
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