ISO 7058-1983 标准详情
- 标准号:ISO 7058-1983
- 中文标题:工业用磷酸 高溶性硫酸盐含量的测定 还原后滴定法
- 英文标题:Phosphoric acid for industrial use; Determination of higher soluble sulfate contents; Titrimetric method after reduction
- 标准类别:国际标准化组织标准ISO
- 发布日期:1983-10
The sulphate present in a test portion is reduced to sulphide by a mixture of hydriodic and phosphinic (hypophosphorous) acids. The hydrogen sulphide evolved is absorbed in an excess of cadmium acetate solution. The cadmium sulphide formed is oxidize
* 特别声明:资源收集自网络或用户上传,本网站所提供的电子文本仅供参考,请以正式出版物为准。仅供个人标准化学习,研究使用。如有侵权,请及时联系我们!
