Натр едкий технический. Метод количественного анализа
Название (англ.):
Sodium hydroxide for industrial use; Method of assay
Описание (англ.):
Method for determination of the titre; this is expressed conventionally as percentages by mass of NaOH, a) as total alkalinity and b) as caustic alkalinity, corresponding to the total alkalinity less the alkalinity due to carbonates. The principle consists in titration of the total alkalinity with standard volumetric hydrochloricacid solution in the presence of methyl orange as indicator. Calculation of the two amounts a) and b). The mass of carbon dioxide is determined by the method specified in ISO 3196. This method has also been approved by the IUPAC. - Cancels and replaces ISO Recommendation R 979-1969 of which it constitutes a technical revision.
Дата введения:
01.12.74
Код КГС:
Л19
Код ОКСТУ:
2132;2109
Код ОКС(МКС):
71.060.40
Код ОКП:
2132;2109
Нормативные ссылки:
BS 6075 PART 1-1981, EQV*ELOT 536-1982, EQV*NBN T 03-121-1980, EQV*NF T20-422-1976, EQV*NS 9042-1981, NEQ*SFS 3789 ISO 979-1983, EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHEMICALS SODIUM HYDROXIDE TITRATION CHEMICAL ANALYSIS AND TESTIN