Sodium hydroxide for chemical fiber use—Determination of sulphate content
NEQ ISO 6353-1:1982;ASTME291:2001
全国化学标准化技术委员会氯碱分会(SAC/TC 63/SC 6)
本标准规定了化纤用氢氧化钠中硫酸盐含量的测定方法。
本标准中,方法A适用于氢氧化钠中硫酸盐含量(以Na2SO4计) 0.001%~0.07％的产品;方法B适用于氢氧化钠中硫酸盐含量(以Na2SO4计)等于或大于0.01％的产品。
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