Surface active agents; Detergents; Determination of cationic-active matter; Direct two-phase titration procedure
Описание (англ.):
The determination is carried out as follows: Titration of an aliquot portion of a sample solution with benzethonium chloride solution according to the direct two phase titration procedure specified in ISO 2271. Hydrolysis, by refluxing under acid conditions, of a second aliquot portion of the sample solution after destruction, if necessary, of any perborate in the sample by the addition of sodium sulfite. Titration of unhydrolysed anionic-activematter with benzethonium chloride solution as before.
Заменён стандартами:
ISO 2871-1(1988.11)
Дата введения:
01.12.73
Дата отмены:
01.11.88
Нормативные ссылки:
BS 3762 SECTION 3.4-1986, NEQ*DIN ISO 2871-1981, EQV*NBN T 63-127-1980, EQV*NEN-ISO 2871-1983, EQV*NF T73-320-1973, EQV*NP-1647-1980, EQV
Ключевые слова:
BLEACHES CATIONIC ACTIVE MATTER CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERGENTS DETERMINATION OF CONTENT SURFACTANTS TESTING VOLUMETRIC ANALYSIS BLEACHING AGENTS CHEMICAL ANALYSIS AND TESTIN