G15 有机化工原料综合 标准查询与下载

ISO 1897-8:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第8部分:邻甲酚含量的测定(只用于甲苯基酸和二甲苯酚)

This method is the best available at the present time. It was primarily intended for samples containing 40 % (m/m) or more but has been extended to lower ranges. The principle is based on dehydration of a quantity of the test sample. Formation of a complex between o-cresol and cineole (having a crystallizing point not lower than 1, 2 ?C) by addition of excess cineole to a test portion of the dehydrated sample. Determination of the crystallizing point of the complex in a crystallizing point apparatus. Calculation of the content from the water content of the test sample and the crystallizing point of the complex. The relation between crystallizing point and o-cresol content of o-cresol/cineole mixtures is given in a table. ISO 1897/8 replaces ISO Recommendation R 1910-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VIII : Determination of o-cresol content (Cresylic acid and xylenols only)

ISO 1897-7:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第7部分:色度的测定(只用于甲苯基酸和二甲苯酚)

Specifies a method for the comparison of the colour of a test portion against the colour of colorimetric standard colour matching solutions. The colour of cresols present in the test portion is liable to darken on keeping and on exposure to ligth. ISO 1897/7 replaces ISO Recommendation R 1909-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VII : Measurement of colour (Cresylic acid and xylenols only)

ISO 1897-6:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第6部分:有无硫化氢的试验(只用于甲苯基酸和二甲苯酚)

simple test which cannot be used to obtain quantitative results. The principle of the method is based on formation of a brown colour on lead acetate paper due to reaction with any hydrogen sulphide present in a test portion. ISO 1897/6 replaces ISO Recommendation R 1908-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VI : Test for absence of hydrogen sulphide (Cresylic acid and xylenols only)

ISO 1897-5:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第5部分:不溶于水的杂质目视试验(只用于苯酚)

Simple empirical test of no great precision. The principle consists in shaking a test portion with sodium hydroxide solution under specified conditions and assessment of any insoluble matter present in suspension in the mixture by comparison either with an agreed standard turbidimetric solution or with water. The comparison of the turbidity of the two solutions is carried out by viewing vertically and with the electric lamp equipped with a ligth blue "dayligth" bulb switched on. ISO 1897/5 replaces ISO Recommendation R 1905-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part V : Visual test for impurities insoluble in water (Phenol only)

ISO 1897-4:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第4部分:不溶于氢氧化钠溶液的杂质目视试验(甲苯基酸和二甲苯酚除外)

Simple empirical test of no great precision. The principle consists in shaking a test portion with sodium hydroxide solution under specified conditions and assessment of any insoluble matter present in suspension in the mixture by comparison either with an agreed standard turbidimetric solution or with sodium hydroxide solution. The comparison of the turbidity of the two solutions is carried out by viewing vertically and with the electric lamp equipped with a ligth blue dayligth-bulb switched on.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part IV : Visual test for impurities insoluble in sodium hydroxide solution (Excluding cresylic acid and xylenols)

ISO 761:1977 工业用乙酸酐和正丁醇 溴值的测定

Acetic anhydride and butan-1-ol for industrial use; Determination of bromine number

ISO 1698:1977 工业用邻二氯苯 试验方法一览表

Specifies the sampling, the determination of distillation characteristics, the determination of density at 20 ?C, the determination of crystallizing point, the determination of residue on evaporation, the determination of water and the determination of acidity. The determination of distillation characteristics indicates the difference between the temperatures corresponding to the collection of two volumes of destillate, V0 and V1. These two volumes will be indicated in the specification of product agreed between the interested parties. Replaces ISO Recommendation R 1698-1970.

O-Dichlorobenzene for industrial use; list of methods of test

ISO 1697:1977 工业用氯苯 试验方法一览表

Specifies the sampling, the determination of ditillation characteristics, the determination of density at 20 ?C, the determination of residue on evaporation, the determination of water and the determination of acidity. The determination of distillation characteristics indicates the difference between the temperatures corresponding to the collection of two volumes of distillate, V0 and V1. These two volumes will be indicated in the specification pf product agreed between th intersted parties. Replaces ISO Recommendation R 1697-1970.

Chlorobenzene for industrial use; list of methods of test

ISO 1869:1977 工业用二氯甲烷 试验方法一览表

Specifies the sampling, the determination of residue on evaporation, the determination of distillation characteristics, the determination of density at 20 ?C, the determination of acidity, the determination of water and the measurement of colour. The determination of distillation characteristics indicates either the temperatures corresponding to the collection of each of two volumes of distillate, V0 and V1, or the difference between these two volumes. These two volumes will be indicated in the specification for dichloromethan agreed between the interested parties. Replaces ISO Recommendation R 1869-1970.

Methylene chloride for industrial use; List of methods of test

ISO 1696:1977 工业用对氯甲苯 试验方法一览表

Specifies the sampling, the determination of distillation characteristics, the determination of density at 20 ?C, the determination of crystallizing point and the determination of o- and p-chlorotoluene content. The determination of distillation characteristics indicates the difference between the temperatures corresponding to the collection of two volumes of distillate, V0 and V1. These two volumes will be indicated in the specification of product agreed between the interested parties. For the determination of o-chlorotoluene, reading, from the crystallizing point diagram or from a table, of the o-chlorotoluene content corresponding to the crystallizing point of the sample. Replaces ISO Recommendation R 1696-1970.

p-Chlorotoluene for industrial use; List of methods of test

ISO 1695:1977 工业用邻氯甲苯 试验方法一览表

Specifies the sampling, the determination of distillation characteristics, the determination of density at 20 ?C, the determination of crystallizing point and the determination of p- and o-chlorotoluene content. The determination of distillation characteristics indicates the difference between the temperatures corresponding to the collection of two volumes of distillate, V0 and V1. These two volumes will be indicated in the specification of product agreed between the interested parties. For the determination of p-chlorotoluene, reading, from the crystallizing point diagram or from a table, of the p-chlorotoluene content corresponding to the crystallizing point of the sample. Replaces ISO Recommendation R 1695-1970.

o-Chlorotoluene for industrial use; List of methods of test

ISO 1870:1977 工业用三氯甲烷 试验方法一览表

Specifies the sampling, the determination of distillation characteristics, the determination of density at 20 ?C, the determination of water, the measurement of colour and the determination of acidity. The determination of distillation characteristics indicates either the temperatures corresponding to the collection of each of two volumes of distillate, V0 and V1, or the difference between these two volumes.These two volumes will be indicated in the specification of the product adreed between the interested parties. Replace ISO Recommendation R 1870-1970.

Chloroform for industrial use; List of methods of test

ISO 1699:1977 工业用对二氯苯 试验方法一览表

Specifies the sampling, the determination of crystallizing point, the determination of residue on evaporation.

P-Dichlorobenzene for industrial use; list of methods of test

ISO 1389-6:1977 工业用邻苯二甲酸酐 试验方法 第6部分:邻苯二甲酸酐含量的测定 滴定法

The principle consists in the dissolution of a test portion in an excess of standard volumetric sodium hydroxide solution and back-titration of the excess with a standard volumetric hydrochloric acid solution using phenolphthalein as indicator. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.

Phthalic anhydride for industrial use; Methods of test; Part VI : Determination of phthalic anhydride content; Titrimetric method

ISO 1389-5:1977 工业用邻苯二甲酸酐 试验方法 第5部分:游离酸度的测定 电位滴定法

The principle of the method consists in the potentiometric titration of a test portion not exceeding 10 g and containing not more than 0.150 g of phthalic acid, with a standard volumetric solution of triethylamine in anhydrous butanone. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.

Phthalic anhydride for industrial use; Methods of test; Part V : Determination of free acidity; Potentiometric method

ISO 1389-4:1977 工业用邻苯二甲酸酐 试验方法 第4部分:硫酸处理后色度的测定

The test sample is treated with sulphuric acid solution in a conical flask in boiling water bath for 3 h. The colour is measured by the method specified in ISO 2211. The results are expressed in Hazen units. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.

Phthalic anhydride for industrial use; Methods of test; Part IV : Measurement of colour after treatment with sulphuric acid

ISO 1385-2:1977 工业用邻苯二甲酸酯类 试验方法 第2部分:热处理后色度的测定(邻苯二甲酸二烯丙基除外)

The method is not applicable to diallyl phthalate because of the risk of explosive polymerization. The procedure is carried out by the method specified in ISO 2211. The result is expressed in Hazen units (platinum-cobalt scale). - ISO 1385, Part 1 to Part 5 replace ISO Recommendation R 1385-1970.

Phathalate esters for industrial use; Methods of test; Part II : Measurement of colour after heat treatment (Diallyl phthalate excluded)

ISO 731-2:1977 工业用甲酸 试验方法 第2部分:总酸度的测定 滴定法

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

ISO 1385-1:1977 工业用邻苯二甲酸酯类 试验方法 第1部分:总则

The document also specifies the methods to be used for the following tests: measurements of colour; determination of density at 20 鳦; determination of water content; determination of iodine value (applicable to diallyl phthalate only); determination of refractive index; determination of flash point; determination of viscosity (not applicable to diallyl phthalate). - ISO 1385, Part 1 to Part 5 replace ISO Recommendation R 1385-1970.

Phthalate esters for industrial use; Methods of test; Part I : General

ISO 731-3:1977 工业用甲酸 试验方法 第3部分:其他酸含量的测定 电位滴定法

The principle consists in a quantitative oxidation of the formic acid in a test portion with excess mercury(II) oxide. Potentiometric titration of the residual acids with standard volumetric sodium hydroxide solution. The method is applicable to products containing 0, 5 to 6, 0 % (m/m) of other acids, expressed as acetic acid. ISO/R 731 has been subdivised into seven parts. ISO 731/3 replaces clause 4 of ISO Recommendation R 731-1968.

Formic acid for industrial use; Methods of test; Part III : Determination of content of other acids; Potentiometric method