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GOST 27179-86
Accumulating electrical heating equipment for household use. Safety requirements and test methods
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€10
GOST R 8.1010-2022
State system for ensuring the uniformity of measurements. Mass fraction of water in oil-gas-water mixture. Requirements to procedures (methods) of measurements
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GOST 29234.2-91
Moulding sands. Method for determination of silicon dioxide
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€10