Криолит природный и искусственный. Приготовление и хранение опытных проб
Название (англ.):
Cryolite, natural and artificial; Preparation and storage of test samples
Описание (англ.):
Specifies the procedure for the preparation of crude samples and dried samples and of natural and synthetic materials having a molar ratio sodium fluoride/aluminium trifluoride between 3 and 1,7 approximately. The crude sample is intended for the determination of geometriccharacteristics, for certain physical and physico-chemical tests and for moisture determination. The dried sample serves especially for chemical tests. The principle of the procedure consists in grinding followed by sieving of the sample until the whole passes through a sieve of mesh aperture 0,125 mm. Thorough mixing and drying at approximately 110
Дата регистрации:
01.11.76
Дата введения:
01.09.76
Код КГС:
А39;Л19
Код ОКСТУ:
1711;1709;2109
Код ОКС(МКС):
71.060.50
Код ОКП:
1711;1709;2109
Нормативные ссылки:
BS 5050-1974, NEQ*NBN T 03-431-1983, EQV
Ключевые слова:
ALUMINIUM ORES CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CRYOLITE PREPARATION SAMPLES STORAGE TEST SPECIMENS CHEMICAL ANALYSIS AND TESTIN