Натр едкий технический. Отбор проб. Опытная проба. Приготовление основных растворов для определения некоторых параметров
Название (англ.):
Sodium hydroxide for industrial use; Sampling; Test Sample; Preparation of the main solution for carrying out certain determinations
Описание (англ.):
Indicates the conditions under which the test sample shall be prepared and relates to particular properties which require particular precausions: the samples shall be taken rapidly in a dry atmosphere, storage in an airtight bottle. The bottle shall be made from an inert material such as polyethylene.Preparation of the main solution with distilled carbonat- free water. If the silica content is to be determined the test portion shall be dissolved in a container made from silica-free material such as polyethylene or silver. Cancels and replaces ISO Recommendations R 977/1969 and R 978/1969.
Заменяет стандарты:
ISO/R 977:1969, ISO/R 978:1969
Дата регистрации:
01.04.75
Дата введения:
01.03.75
Код КГС:
Л19
Код ОКСТУ:
2133;2109
Код ОКС(МКС):
71.060.40
Код ОКП:
2133;2109
Нормативные ссылки:
BS 6075 PART 5-1981, EQV*ELOT 463-1982, EQV*NBN T 03-129-1980, EQV*NF T20-421-1976, EQV*NP-1156-1976, EQV*NS 9051-1981, NEQ*SFS 3790 ISO 3195-1983, EQV