BS 5050:1974現行
Methods of test for cryolite
出版：British Standards Institution
專家解讀視頻
Preparation and storage of test samples, determination of silica, fluorine, iron and sodium contents and of aluminium content by gravimetric and atomic absorption methods.
? British Standards Institution 2013
ISO 3391:1976 - Similar
ISO 1693:1976 - Similar
ISO 2366:1974 - Similar
ISO 1619:1976 - Similar
ISO 3392:1976 - Similar
ISO 2367:1972 - Similar
ISO 1694:1976 - Similar
ISO 1620:1976 - Similar
ISO 3393:1976 - Similar
ISO 2830:1973 - Similar
