ISO 5938:1979现行
Cryolite, natural and artificial, and aluminium fluoride for industrial use - Determination of sulphur content - X-ray fluorescence spectrometric method
出版：International Organization for Standardization
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NBN T 03 449:1983 - Identical
KS M ISO 5938:2003 - Identical
NFT 20 161:1984 - Identical
BS 5050-12:1980 - Equivalent
BS 4993-9:1980 - Equivalent
SS ISO 5938 Ed. 1 (1993) - Identical
