GB - Chinese national standards

Surface active agents--Determination of interfacial tension--Drop volume method

Available languages: English, Chinese

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Surface active agents--Powders and Granules--Measurement of the angle of repose

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Surface active agents—Technical alkane sulphonates—Determination of total alkane sulphonates content

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Surface active agents - Technical alkane sulfonates - Determination of mean relative molecular mass and content of the alkane monosulfonate

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Surface active agents—Test methods of technical sodium alkylarylsulphonates (excluding benzene derivatives)

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Determination of reversible swelling of exchange resins

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Determination of exchange capacity of strong basic anion exchange resins in chloride form

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Cup head square neck bolts

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Parallel pins with internal threadof unhardened steel and austenitic stainless steel

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Parallel pins with internal threadof hardened steel and martensitic stainless steel

Available languages: English, Chinese

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