71.080.40 有机酸 标准查询与下载
共找到 268 条与 有机酸 相关的标准，共 18 页
The principle consists in a titration of a test portion with a standard volumetric sodium hydroxide solution, using phenolphthalein as indicator. ISO/R 731 has been subdivised into seven parts. ISO 731/2 replaces clause 3 of ISO Recommendation R 731-1968.
Formic acid for industrial use; Methods of test; Part II : Determination of total acidity; Titrimetric method
- ICS
- 71.080.40
- CCS
- G15
- 发布
- 1977-02
- 实施
Gives general instructions relating to methods of test, especially for sampling. ISO/R 731 has been subdivised into seven parts. ISO 731/1 replaces clauses 1, 2 and 7 of ISO Recommendation R 731-1968.
Formic acid for industrial use; Methods of test; Part I : General
- ICS
- 71.080.40
- CCS
- G15
- 发布
- 1977-02
- 实施
The principle consists in a comparison of the turbidity, obtained by the addition of barium chloride to a solution prepared from a test portion in the presence of hydrochloric acid, with that similarly obtained from a standard sulphate solution. The method is a applicable to products having inorganic sulphates contents, expressed as sulphate (SO42-), in the range 0, 001 to 0, 1 % (m/m).
Formic acid for industrial use; Methods of test; Part V : Visual limit test for inorganic sulphates
- ICS
- 71.080.40
- CCS
- G15
- 发布
- 1977-02
- 实施
Настоящий стандарт распространяется на техническую бензойную (бензолкарбоновую) кислоту, применяемую в качестве полупродукта в медицинс
Benzoic acid for industrial use. Specifications
- ICS
- 71.080.40
- CCS
- 发布
- 1977
- 实施
- 1979-01-01
本标准适用于工业级对苯二甲酸，但不适合于聚合及纤维用。
Terephthalic Acid (Technical Grade)
- ICS
- 71.080.40
- CCS
- 发布
- 1976-06-01
- 实施
- 1976-06-01
Настоящий стандарт распространяется на лесохимическую уксусную кислоту, получаемую из продуктов пиролиза древесины
Acetic acid by wood distillation. Specifications
- ICS
- 71.080.40
- CCS
- 发布
- 1976
- 实施
- 1978-01-01
Synthetic and regenerated acetic acid. Specifications
- ICS
- 71.080.40
- CCS
- 发布
- 1974
- 实施
- 1976-01-01
Technical 1-naphthol -2-carboxylic acid. Specifications
- ICS
- 71.080.40
- CCS
- 发布
- 1973
- 实施
- 1974-07-01
この規格は，タール中間物（染顔料中間物)としてのアジピソ酸について規定する。
Adipic acid
- ICS
- 71.080.40
- CCS
- G17
- 发布
- 1972-08-01
- 实施
Color measurement of cresolic acid and xylenol for industrial use
- ICS
- 71.080.40
- CCS
- 发布
- 1971-12-01
- 实施
Test visual inspection of insoluble sodium hydroxide solutions for industrial phenol, o-cresol, m-cresol and p-cresol impurities
- ICS
- 71.080.40
- CCS
- 发布
- 1971-12-01
- 实施
Test visual inspection of water-insoluble impurities in industrial phenol
- ICS
- 71.080.40
- CCS
- 发布
- 1971-12-01
- 实施
Determination of density of industrial liquefied phenol, m-cresol, toluic acid and xylenol at 20°C
- ICS
- 71.080.40
- CCS
- 发布
- 1971-12-01
- 实施
Withdrawal of ISO/R 1899-1971
- ICS
- 71.080.40
- CCS
- 发布
- 1971-12
- 实施
- 1971-12
Determination of iron content.
Methods of test for formic acid
- ICS
- 71.080.40
- CCS
- G16
- 发布
- 1971-10-29
- 实施
- 1971-10-29
