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Sodium hydroxide for chemical fiber use—Determination of sodium hydroxide content
MOD ISO 979:1974(2002)
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氢氧化钠含量的测定方法。通常以NaOH的质量分数用两种不同的方式表达:
w1——总碱量(以NaOH计);
w2——氢氧化钠含量(以NaOH计),即总碱量减去碳酸钠含量。
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