Олефины легкие технические. Определение следов воды. Метод Карла Фишера
Название (англ.):
Light olefins for industrial use; Determination of traces of water; Karl Fischer method
Описание (англ.):
Describes a method applicable to products having water contents between 10 and 100 mg/kg. Specifies the manner of applications of the Karl-Fischer method, whose principle and chemical reaction are given in ISO 760 which should also be used for higher water contents as sampling is notvalid when there is a risk that condensation of water may occur. The principle consists in absorbing the traces of water in a test portion in a solvent to which a sufficient quantitty of Karl-Fischer reagent has been added so that there is neither an excess of water nor an excess of the Karl Fischer reagent, when the solvent is said to be at the equivalence point.
Заменяет стандарты:
ISO 5141:1978
Дата регистрации:
01.10.81
Дата введения:
01.08.81
Дата отмены:
30.05.02
Код КГС:
Л29
Код ОКСТУ:
2409;2411
Код ОКС(МКС):
71.080.10
Код ОКП:
2409;2411
Нормативные ссылки:
BS 5712 PART 1-1979, NEQ*NBN T 04-501-1985, EQV
Ключевые слова:
ALKENES APPARATUS CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT INSPECTION KARL FISCHER METHOD OLEFIN OLEFINIC HYDROCARBONS SAMPLING SAMPLING METHODS WATER CHEMICAL ANALYSIS AND TESTIN