BS 4258-3:1975
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Methods of test for phosphoric acid (orthophosphoric acid) for industrial use Determination of sulphate content
Hardcopy
English
30-09-1975
29-09-1989
Reduction of the sulphate in a test portion to sulphide, absorption of the evolved hydrogen sulphide in acetone and sodium hydroxide solution and titration with mercury (II) acetate using dithizone as indicator.
| Committee |
CII/37
|
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
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