Test methods of sodium hydroxide for chemical fiber use—Part 7:Determination of copper content—Spectrometric method
MOD BS 6075-12-1981
全国化学标准化技术委员会氯碱分会(SAC/TC 63/SC 6)
GB/T 11213的本部分规定了化纤用氢氧化钠中铜含量的测定方法。
本部分适用于氢氧化钠中铜含量为0.000 01%～0.000 1%的产品。
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