G15 有机化工原料综合 标准查询与下载

ISO 1388-2:1981 工业用乙醇 试验方法 第2部分:以酚酞为指示剂检验碱度或测定酸度

The method is applicable to products having acidities equal to or greater than 0.0008 % (m/m). The principle consists in the dilution of a test portion with carbon dioxide-free water, checking whether the test solution is alkaline or acid to phenolphthalein, and, if appropriate, determination of the acidity by titration with standard volumetric sodium hydroxide solution. The acidity is expressed as a percentage by mass of acetic acid. - International Standards ISO 1388/1 to 1388/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.

Ethanol for industrial use; Methods of test; Part 2 : Detection of alkalinity or determination of acidity to phenolphthalein

ISO 1388-6:1981 工业用乙醇 试验方法 第6部分:水混溶性试验

The principle of the procedure consists in addition of water to a test portion, under specified conditions, and examination for opalescence against a black background with side illumination, using a second Nessler cylinder containing water as the standard. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.

Ethanol for industrial use; Methods of test; Part 6 : Test for miscibility with water

ISO 1388-8:1981 工业用乙醇 试验方法 第8部分:甲醇含量的测定(0.10～1.50%(V/V)的甲醇含量) 目测比色法

The principle is based on the conversion of the methanol present in a test portion to formaldehyde by oxidation with a solution of potassium permanganate in phosphoric acid. Reaction of the formaldehyde formed with Schiff reagent. Visual comparison of the colour obtained with the colours of standard colorimetric solutions containing known quantities of formaldehyde. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.

Ethanol for industrial use; Methods of test; Part 8: Determination of methanol content (methanol contents between 0,10 and 1,50 % (V/V)); Visual colorimetric method

ISO 753-4:1981 工业用乙酸 试验方法 第4部分:乙醛单体含量的测定 滴定法

Acetic acid for industrial use; Methods of test; Part 4 : Determination of acetaldehyde monomer content; Titrimetric method

ISO 6379:1981 工业用乙烯 烃类杂质的测定 气相色谱法

This International Standard specifies a gas chromatogrphic method for the determination of hydrocarbon impurities in ethylene for industrial use. The method is applicable to the determination of the impurities listed in annex B and principally to the determination of - mathane(CH4)at concentrations greater than 5ml/m3; - ethane (CH3-CH3)at concentrations greater than 5ml/m3; - acrtylene(ethyne)(CH≡CH)at concentrations greater than 1ml/m3; - proylene(CH3-CH2-CH3)at at concentrations greater than 2ml/m3; - propylene(propene)(CH2=CH-CH3)at concentrations greater than 2ml/m3.

Ethylene for industrial use; Determination of hydrocarbon impurities; Gas chromatographic method

ISO 753-2:1981 工业用乙酸 试验方法 第2部分:乙酸含量的测定 滴定法

Acetic acid for industrial use; Method of test; Part 2 : Determination of acetic acid content; Titrimetric method

ISO 753-10:1981 工业用乙酸 试验方法 第10部分:重金属(包括铁)目测极限检验

Acetic acid for industrial use; Methods of test; Part 10 : Visual limit test for heavy metals (including iron)

ISO 753-9:1981 工业用乙酸 试验方法 第9部分:无机硫酸盐目测极限试验

Acetic acid for industrial use; Methods of test; Part 9 : Visual limit test for inorganic sulphates

ISO 753-8:1981 工业用乙酸 试验方法 第8部分:无机氯化物极限目测试验

Acetic acid for industrial use; Methods of test; Part 8 : Visual limit test for inorganic chlorides

ISO 753-7:1981 工业用乙酸 试验方法 第7部分:重铬酸盐指数的测定

Acetic acid for industrial use; Methods of test; Part 7 : Determination of dichromate index

ISO 753-6:1981 工业用乙酸 试验方法 第6部分:高锰酸盐指数的测定

Acetic acid for industrial use; Methods of test; Part 6 : Determination of permanganate index

ISO 753-5:1981 工业用乙酸 试验方法 第5部分:乙醛总含量的测定 滴定法

Acetic acid for industrial use; Methods of test; Part 5 : Determination of total acetaldehyde content; Titrimetric method

ISO 6378:1981 工业用丁二烯 烃类杂质的测定 气相色谱法

Butadiene for industrial use; Determination of hydrocarbon impurities; gas chromatographic method

ISO 6377:1981 工业用轻烯烃 用气相色谱法测定杂质 一般考虑

Light olefins for industrial use; Determination of impurities by gas chromatography; General considerations

ISO 1543:1981 工业苯 词汇 三种语言版

The document gives equivalent terms and defines some of the relevant terms used in the chemical technology of this product. - Cancels and replaces ISO Recommendations R 1542-1971 and R 1543-1971 and constitutes their technical revision.

Benzole industry; Vocabulary Trilingual edition

ISO 6794:1981 工业用丁二醇-1,4 不饱和度的测定

Butane-1,4-diol for industrial use; Determination of degree of unsaturation

ISO 6380:1981 工业用丙烯 烃类杂质的测定 气相色谱法

This International Standard specifies a gas chromatographic method for the deteremination of hydrocarbon impurities in propylene for industrial usr.

Propylene for industrial use; Determination of hydrocarbon impurities; Gas chromatographic method

ISO 753-1:1981 工业用乙酸 试验方法 第1部分:总则

Acetic acid for industrial use; Methods of test; Part 1 : General

ISO 755-1:1981 工业用正丁醇 试验方法 第1部分:总则

Gives general instructions ans also specifies the methods to be used for the determination of density at 20 C, the determination of aldehydes and ketones content, the determination of destillation yield, the determination of dry residue after evaporation on the water bath, the determination of bromine number, the measurement of colour and the determination of water content. International Standards ISO 755/1, ISO 755/2 and ISO 755/3 cancels and replace ISO Recommendation R 755-1968, of which they constitute a technical revision. It has also been approved by the International Union of Pure and Applied Chemistry (IUPAC).

Butan-1-ol for industrial use; Methods of test; Part 1 : General

ISO 759:1981 工业用挥发性有机液体 水浴蒸发后干残余物的测定 一般方法

The method of test is applicable to products having dry residues after evaporation greater than or equal to 10 mg/kg ?.001 % (m/m)? The principle consists in evaporation of a test portion on a water bath, and drying the residue, if any, to a constant mass in an oven at 110 鳦 2 K. - Cancels and replaces ISO Recommendation R 759-1968 of which it constitutes a technical revision.

Volatile organic liquids for industrial use; Determination of dry residue after evaporation on water bath; General method