Chinese Standard: GB/T 4348.3-2012

Sodium hydroxide for industrial use—Determination of iron content—1,10-phenanthroline photometric method

全国化学标准化技术委员会氯碱分会(SAC/TC 63/SC 6)

本标准规定了1，10菲啰啉分光光度法测定工业用氢氧化钠中铁含量的方法。
本标准适用于铁含量大于或等于0.000 05%（质量分数）的工业用氢氧化钠产品。

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