G72 表面活性剂基础标准与通用方法 标准查询与下载

BS 6829-1.1:1987 表面活性剂（原料）分析 一般方法 矿物硫酸盐含量的测定方法

Titration with a standard volumetric lead (II) nitrate solution in the presence of dithizone as indicator.

Analysis of surface active agents (raw materials). General methods. Method for determination of mineral sulphate content

ISO 2456:1986 表面活性剂 用作试验溶剂的水 规范和试验方法

The following requirements are specified: residue after evaporation, electrical conductivity, oxidizable matter expressed in oxygen content, absorbance at 254 nm and 1 cm cell optical path length: 0.01 units max., reactive silica content, surface tension. The corresponding methods of test are specified in an annex.

Surface active agents; Water used as a solvent for tests; Specification and test methods

NF T73-422:1986 表面活性剂.非离子混合物表面活性剂.浊点温度测定(浊点)

Surface active agents. Mixed non-ionic surface active agents. Determination of cloud temperature (cloud point).

ISO 6889:1986 表面活性剂 用拉起液膜法测定界面张力

The determination is carried out in the following way: Measurement of the maximum force which can be exerted before the film breaks, the force being exerted vertically on a stirrup or ring, in contact with he interfacial liquid film between two immiscible liquid phases placed in a measuring cup, in order to draw up the interfacial film. The force must pass through a maximum, otherwise the measurement is not valid.

Surface active agents; Determination of interfacial tension by drawing up liquid films

ISO 304:1985 表面活性剂 用拉起液膜法测定表面张力

The maximum force is measured which is necessary to act vertically on a stirrup or a ring, in contact with the surface of the liquid being examined placed in a measuring cup, in order to separate it from this surface, or on a plate with an edge in contact with the surface, in order to draw up the film that has formed. The surface tension of pure liquids or other solutions can also be measured by this method.

Surface active agents; Determination of surface tension by drawing up liquid films

NF T73-419:1984 表面活性剂.用旋转粘度计测定流动性能

Surface active agents. Determination of flow properties using as rotational viscometer.

DIN ISO 4324:1983 粉状和粒状表面活性剂.休止角的测定

Surface active agents; powders and granules; measurement of the angle of repose

NF T73-276:1983 表面活性剂.洗涤剂.非离子表面活性剂.生物降解性的测定.基准法

Surface active agents. Detergents-non-ionic surface active agent. Determination of biodegradability. Reference method.

NF T73-250:1983 表面活性剂.阳离子表面活性剂.水中可溶性的测定

Surface active agents. Anionic surface active agents. Determination of solubility in water.

NF T73-417:1983 表面活性剂.丝光处理试剂.用棉花收缩率测定法评价湿性产品丝光处理的活性

Surface active agents. Mercerizing agents. Evaluation of the activity of wetting products for mercerization by determination of the shrinkage rate of cotton.

NF T73-416:1983 表面活性剂.钙化皂扩散能力的测定.酸度滴定法(修订的施恩费尔德法)

Surface active agents. Determination of the power to disperse calcium soaps. Acidimetric method (modified schoenfeldt method).

NF T73-208:1983 表面活性剂.矿物硫酸盐含量的测定.滴定法

Surface active agent. Determination of mineral sulfate content. Titrimetric method.

NF T73-415:1983 表面活性剂.干洗溶剂中水的扩散能力

Surface active agents. Water dispersing power in dry cleaning solvents.

NF T73-414:1983 表面活性剂.阳离子表面活性剂(氢氯化物和氢溴化物).临界胶束化浓度的测定.抗离子活性的测量方法

Surface active agents. Cationic surface active agents (hydrochlorides and hydrobromides). Determination of critical micellization concentration. Method by measurement of counter ion activity.

ISO 6387:1983 表面活性剂 钙皂分散力的测定 酸量滴定法(改进的舍恩费尔特法)

A 0,5 % (m/m) aqueous soap solution is prepared, and after maintaining this at testing temperature for 24 h, an aliquot portion of this solution is taken. This aliquot portion is mixed with a dilute solution of the dispersing agent (surface active agent) and subsequently with a specified volume of water of known calcium hardness. The mixture is maintained for 1 h at the testing temperature and then the calcium soap present in a aliquot portion of the lower layer is titrated with a standard volumetric solution of hydrochloric acid in the presence of bromcresol green as indicator.

Surface active agents; Determination of the power to disperse calcium soap; Acidimetric method (Modified Schoenfeldt method)

ISO 6844:1983 表面活性剂 无机硫酸盐含量的测定 滴定法

A buffered acetonic solution of a test portion is titrated with a standard volumetric lead(II) nitrate solution in the presence of dithizone as indicator. The method is applicable to anionic surface active agents, containing sodium, ammonium and alkanolamine sulphates. It is not applicable to products containing other compounds such as phosphates or large amounts of chloride nor is it applicable in the presence of large amounts of salts of weak acids (for example, soaps or monoesters of sulphosuccinic acid).

Surface active agents; Determination of mineral sulfate content; Titrimetric method

ISO 6836:1983 表面活性剂 丝光处理剂 通过测定棉线收缩率来评价丝光处理用润湿产品的活度

The test is carried out in the following way: Immersion in the liquor containing the agent being studied of a hank of smooth cotton held by a hook and with a load fixed on the end of it. determination of the shrinkage of the hank at different intervals of time using one of the tow pieces of apparatus described.

Surface active agents; Mercerizing agents; Evaluation of the activity of wetting products for mercerization by determination of the shrinkage rate of cotton

ISO 6839:1982 阴离子表面活性剂 水中溶解度的测定

Preliminary the temperatures are determined at which solutions of known concentration change on heating from being cloudy to clear and on cooling from being clear to cloudy. Two solutions of the same concentration, one being colder and cloudy and the other being warmer and clear, are placed in a bath, controlled at a preliminary determined temperature and their appearance at temperature equilibrium is noted. The test is repeated at varying temperatures until the clear solution remains clear and cloudy solution cloudy.

Anionic surface active agents; Determination of solubility in water

ISO 6837:1982 表面活性剂 在干洗溶剂中的水分散力

From premixes containing different amounts of water and relatively constant amounts of the detergent and solvent dry cleaning solutions with the desired final concentration of detergent are prepared. The water solubilizing power of the detergent is determined by visula assesment of the optical density of the solutions, and, after adding water to those solutions that are still clear, the solubilized water content for a given concentration of detergent is determined. The water emulsifying power of the detergent is determined by observation of phase separation in the solutions, and, after adding water to those solutions in which the phases are considered not to have separated, the emulsified water content for a given concentration of the detergent is determined.

Surface active agents; Water dispersing power in dry cleaning solvents

ISO 6840:1982 阳离子表面活性剂(氢氯化物和氢溴化物) 临界胶束浓度的测定 反离子活度测量法

The determination is carried out as follows: Potentiometric determination of the chloride or bromide ion activity of a series of solutions of cationic surface active agents the concentration of which cover the expected micellization concentration. Plotting the graph of potential as a function of the logarithm of the concentration; the c.m.c. corresponds to the singularity on this curve. The method is applicable to purified cationic surface active agents (hydrochlorides and/or hydrobromides), which are soluble in water and which have a Krafft temperature below 60 degree Celsius.

Cationic surface active agents (Hydrochlorides and hydrobromides); Determination of critical micellization concentration; Method by measurement of counter ion activity