BS 5659-3:1989
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Methods of test for acid-grade fluorspar Determination of sulphide content
Hardcopy , PDF
04-30-1991
English
09-29-1989
Iodometric method applicable to products having a sulphur content of not less than 0.001%. Applies also to ceramic-grade fluorspar.
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