ISO 2749-1973 标准详情
- 标准号:ISO 2749-1973
- 中文标题:工业用尿素-常规浓度(100 G/L)的尿素溶液的PH值测量-电势测定法
- 英文标题:urea for industrial use-measurement of the ph of a solution of urea of conventional concentration(100 g/l)- potentiometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1973-11-01
Describes the measurement of a solution of a test sample by means of a pH meter fitted with one glass electrode and one calomel electrode. The pH meter has a sensitivity of 0.05 pH units. The calibration of the pH meter is carried out at (20 0.5) 0C
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