GB/T 11213.3-2003 in English
VALIDSodium hydroxide for chemical fiber use—Determination of the calcium content—EDTA complexometric method
- Issued on:2003-08-25
- Implemented on:2004-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$107.00
《GB/T 11213.3-2003化纤用氢氧化钠 钙含量的测定 EDTA络合滴定法》由TC63(全国化学标准化技术委员会)归口,TC63SC6(全国化学标准化技术委员会氯碱分会)执行,主管部门为中国石油和化学工业联合会。
本标准规定了化纤用氢氧化钠中钙含量的测定方法。本标准适用于氢氧化钠中钙的质量分数大于或等于0.000 5%的产品。
Scope
This standard specifies the method for determining the calcium content in sodium hydroxide for chemical fiber use. This method is applicable to products with a calcium content greater than or equal to 0.0005% by mass in sodium hydroxide.

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