GB - Chinese national standards

Types and basic parameters of heat exchangers—Part 5Spiral heat exchangers

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Types and basic parameters of heat exchangers—Part 6Air cooled heat exchanger

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Enhanced heat transfer tubes used in heat exchanger

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Enhanced heat transfer elements used in tube-shell heat exchangers—Part 1:Threaded tubes

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Directive for technique of water metering

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Determination of acidic and neutral protease activity in feed additives - Spetrophotometric method

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Determination of malonaldehyde in feed - High performance liquid chromatography

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Determination of T-2 toxin in feed - High performance liquid chromatography with immunoaffinity column clean-up

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Rubber sealing gaskets used in plate heat exchangers

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General for starch sugar classification

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