GB - Chinese national standards

Iron oresExperimental methods for checking the bias of sampling

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Iron ores—Determination of the moisture content of a lot

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Iron ores for blast furnace feedstocks —Determination of the decrepitation index

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Iron ores and direct reduced iron—Determination of size distribution by sieving

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Iron ores - Single-point determination of specific surface area - Nitrogen adsorption method

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Iron ores—Determination of specific surface area—Test method using air-permeability apparatus (Blaine)

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Shaped refractory products-rule of acceptance,sampling and inspection

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Shaped refractory products inspections of dimension, appearance and section

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Plastics - Methods for determining the density of non-cellular plastics - Part 1: Immersion method, liquid pyknometer method and titration method

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Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method

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