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Modification date
BS 4244:1967
WITHDRAWN
Specification for porcelain and silica crucibles
Date modified:
29/12/1967
BS 4258-1:1968
WITHDRAWN
Methods of test for phosphoric acid for industrial use. Determination of iron content
Date modified:
31/01/1968
BS 4258-10:1978
WITHDRAWN
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use
Date modified:
31/01/1978
BS 4258-11:1982
WITHDRAWN
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use
Date modified:
30/11/1982
BS 4258-12:1982
CURRENT
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Guide to sampling techniques
Date modified:
30/11/1982
BS 4258-13:1990
CURRENT
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of soluble sulphate content (potentiometric method)
Date modified:
31/07/1990
BS 4258-2:1968
SUPERSEDED
Methods of test for phosphoric acid for industrial use.
Date modified:
31/01/1968
BS 4258-2:1989
CURRENT
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of iron content
Date modified:
29/09/1989
BS 4258-3:1975
SUPERSEDED
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use
Date modified:
30/09/1975
BS 4258-3:1989
CURRENT
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Methods of test for phosphoric acid (orthophosphoric acid) for industri...
Date modified:
29/09/1989
