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GB/T 20899.1-2007 Methods for chemical analysis of gold ores - Part 1：Determination of gold contents 金矿石化学分析方法 第1部分：金量的测定 - 中英文版 |
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GB/T 20899.11-2007 Methods for chemical analysis of gold ores - Part 11：Determination of arsenic and bismuth contents 金矿石化学分析方法 第11部分：砷量和铋量的测定 - 中英文版 |
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GB/T 20899.10-2007 Methods for chemical analysis of gold ores - Part 10：Determination of antimony contents 金矿石化学分析方法 第10部分：锑量的测定 - 中英文版 |
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GB/T 3780.21-2006 Carbon black―Part 21：Determination of sieve residue for rubber compounding ingredients―Water washing method 炭黑 第21部分：橡胶配合剂筛余物的测定 水冲洗法 - 中英文版 |
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