BS 2690-4:1967
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Methods of testing water used in industry Calcium and magnesium
Hardcopy
11-15-1989
English
12-31-1979
Spectrophotometric methods; also titration methods for two concentration levels of calcium and magnesium.
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