ISO 2751-1973 标准详情
- 标准号:ISO 2751-1973
- 中文标题:工业用尿素-缓冲系数测定-电势测定法
- 英文标题:urea for industrial use-determination of the buffer coefficient-potentiometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1973-11-15
Applicable to solutions of conventional concentration. The principle consists in measurement, at (20 0.5) 0C, of the quantity of 0.05 N acid solution required to effect a pH change from 8 to 6 for a solution containing 100 g of urea in 1000 ml of sol
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