GB - Chinese national standards

Test methods of hydrophobic characteristics for porous hydrophobic membrane

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Test method for resistivity of semi-insulating monocrystalline silicon carbide by contactless measurement

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The method for determining the chloride diffusion coefficient for cement mortar

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Methods for chemical analysis of zirconium compounds—Determination of calcium,hafnium,titanium,sodium,iron,chromium,cadmium,zinc,manganese,copper,nickel,lead contents—Inductively coupled plasma atomic emission spectrometry

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Determination of the content and distribution of trace elements (magnesium, gallium) in aluminum nitride materials—Secondary ion mass spectrometry

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Hardmetals—Determination of total carbon content—High frequency combustion infrared absorption or thermal conductivity method

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Determination of fluorine ion and chloride ion in silicon nitride powder—Ion chromatography method

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Test method for carbonation of cement mortar

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Rubber,vulcanized—Determination of stress in tension upon heating

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Rubber,vulcanized or thermoplastic—Determination of tension set under constant elongation,and of tension set,elongation and creep under constant tensile load

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