G72 表面活性剂基础标准与通用方法 标准查询与下载
共找到 488 条与 表面活性剂基础标准与通用方法 相关的标准，共 33 页
Specifies the following determinations for the substances to be tested: Measurement of pH, determination of water content, determination of free alkalinity or free acidity, determination of matter extractable by light petroleum, determination of sodium alkylarylsulphonates content, determination of sodium sulphite content, determination of sodium sulphate content, determination of sodium chloride content. In annexes a general scheme of analysis and a rapid method for the determination of sodium alkylarylsulphonates are given.
Surface active agents; Technical sodium alkylarylsulphonates (excluding benzene derivatives); Methods of analysis
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-11
- 实施
Specifies the following methods of analysis for the substances to be tested: measurement of pH, determination of water content, determination of free alkalinity or free acidity, determination of total alkalinity, determination of matter extractable by light petroleum, determinition of the sodium alkylsulphates content, determination of sodium sulphate content, determination of sodium chloride content. In an annex a general scheme of anlysis is given.
Surface active agents; Technical sodium secondary alkylsulphates; Methods of analysis
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-11
- 实施
Specifies the following methods of analysis for the substances to be tested: measurement of pH, determination of water content, determination of free alkalinity or free acidity, determination of total alkalinity, determination of matter extractable by light petroleum, determination of matter extractable by diethyl ether after acid hydrolysis (combined technical fatty alcohols), determination of sodium sulphate content, determination of sodium chloride content. In annex a general schema of analysis is given.
Surface active agents; Technical sodium primary alkylsulphates; Methods of analysis
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-11
- 实施
Surface active agents. Determination of free alkalinity or free acidity. Titrimetric method.
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-10-01
- 实施
- 1977-10-12
本标准规定了采用电位法测定表面活性水溶液pH值的方法。 本标准适用于表面活性剂水溶液pH值测定。
Surface active agents; Determination of pH of aqueous solutions; Potentiometric method
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-08
- 实施
The method consists in calcination of a test portion in the presence of sulphuric acid solution and weighing of the ash in form of sulphate.
Non-ionic surface active agents; Determination of sulphated ash; Gravimetric method
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-05
- 实施
Insecticides for flying insects. Permanent insecticide distributor. Determination of the efficiency rating and the regularity rating.
- ICS
- 65.100.10;97.180
- CCS
- G72
- 发布
- 1977-03-01
- 实施
- 1977-03-03
The classification is intended to provide a clear and logical designation of the structural chemical groups of a surface active agent, in the form of a decimal notation. Its aim is to describe a surface active agent according to its chemical formula. The subdivision of the classification is, however, not taken far enough to enable one classification index number to be considered as necessarily corresponding to a specific product. The classification index number would enable to reconstruct a molecular structure which is approximate but nevertheless sufficiently precise.
Surface active agents; Scientific classification
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-03
- 实施
本标准规定了用滴定法测定表面活性剂中游离碱度或游离酸度的方法。 本方法只有当每种产品的特定标准中指明时方可适用。
Surface active agents; Determination of free alkalinity or free acidity; Titrimetric method
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-02
- 实施
A clear solution of the substance is titrated with a standard volumetric hydrochloric acid solution, in the presence of methyl orange or bromophenol blue as indicator. This method is only applicable when so indicated in the specific standard for each product; in particular, it is not suitable for products containing soaps.
Surface active agents; Determination of alkalinity; Titrimetric method
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-02
- 实施
The determination is carried out by adding, at 30 degree Celsius, of distilled water to a propanol solution to the surface active agent until the appearance of cloudiness. The determination of the cloud point index provided a way of characterizing weakly alkoxylated derivates and their hydrocarbon hydrophobic groups. This simple and rapid measurement is a valuable means for checking the level of alkoxylation of non-ionic derivatives intended, for example, for sulphonation.
Non-ionic surface active agents; Determination of cloud point index; Volumetric method
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1977-02
- 实施
After 500 ml of a solution of the substance to be tested have flowed down from a height of 450 mm onto the surface of the same solution, the volume of foam formed is measured, This method is applicable to all surface active agents, but solutions of easy-hydrolizable substances do not give reliable results because the hydrolysis products accumulate in the liquid films and affect the steadiness of the foam.
Surface active agents; Measurement of foaming power; Modified Ross-Miles method
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1975-07
- 实施
Testing method for biodegradability of nonionic surface active agent
- ICS
- CCS
- G72
- 发布
- 1975-01-01
- 实施
- 1975-01-01
Solutions of the substance to be tested in differing concentrations are mixed with hard water solutions of differing known calcium hardness. After leaving the solutions to stand in specified conditions their appearance, i.e. clearness, opalescence, cloudiness or precipitation is observed. The method is applicable to surface active agents soluble in water at 20 鳦. It can be extended to those which are soluble at approximately 50 鳦.
Surface active agents; Determination of stability in hard water
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1974-12
- 实施
La présente Norme Internationale spécifie une méthode simple de détermination, en laboratoire, de la masse volumique apparente, au remplissage, des agents de surface se présentant en pâtes, onguents et sous d'autres formes similaires.
Surface active agents; Determination of apparent density of pastes on filling
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1974-06
- 实施
Surface active agents. Anionic active matter hydrolysable under alkaline conditions. Determination of hydrolysable and non hydrolysable active matter.
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1973-08-01
- 实施
- 1973-07-30
The simplified system enables the characteristics of the substances to be expressed by an abbreviated lettering and numbering system, consisting of one letter and four figures (five in the case of compounds comprising several hydrphilic groups). The letter designates the ionic character and figures correspond to the functional groups present in the molecule.
Surface active agents; Simplified classification
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1972-11
- 实施
The method relies on the facts that both non-ionic adducts and polyethylene glycols are soluble in sodium chloride solution, but one is soluble in ethyl acetate whereas the other is not. Separation of the polyethylene glycols and the adducts is, therefore, possible by the following methods: Dissolution of the sample in ethyl acetate and extraction of polyethylene glycols by sodium chloride solution. Extraction of the polyethylene glycols isolated in the sodium chloride solution with chloroform, removal of the solvent and weighing of the residue. Evaporation of the ethyl acetate solution which contains the adducts and weighing of the residue.
Surface active agents (non-ionic); Determination of polyethylene glycols and non-ionic active matter (adducts); Weibull method
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1972-11
- 实施
Surface active agents. Simplified classification.
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1972-07-01
- 实施
- 1972-06-28
Surface active agents. Scientific classification. Referenceonsiderations and application.
- ICS
- 71.100.40
- CCS
- G72
- 发布
- 1969-10-01
- 实施
