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State system for ensuring the traceability of measurements. Instruments for determination the nitrites and nitrates in food. Verification procedure
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Resources saving. Waste treatment. Interconnection of requirements of Federal classification catalogue of waste and Russian classification of production
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Food additives. Pyrophosphates E450. General specifications
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Bismuth. Method for determination of lead content
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Threaded pipe connections. Clamp and thrust rings. Construction
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