Analysis of rainwater - Determination of free acidity
雨水分析.游离酸度的测定

1996-12-01

Analysis of rainwater - Determination of chloride, nitrate and sulfate in rainwater by ion chromatography using the suppressor technique
雨水分析.用抑制技术用离子色谱法测定雨水中的氯化物、硝酸盐和硫酸盐

1996-12-01

Methods for chemical analysis of cheese-Determination of pH value
奶酪化学分析方法

1976-12-15

填料用氢氧化铝分析方法　第1部分：pH值的测定
Analysis Method for aluminum hydroxide for filler—Part 1:Determination method of pH value

2010-11-22

Testing of fat liquors and greases for leather; methods of analysis, determination of pH-value in hydrate emulsion or solution
皮革用油脂和油脂的测试；分析方法 水合物乳液或溶液pH值的测定

1978-06-01