BS 4427-9:1975
Withdrawn
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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 sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of fluorine content
Available format(s)
Hardcopy , PDF
Withdrawn date
29-02-1992
Language(s)
English
Published date
30-01-1976
Publisher
Photometric method applicable to fluorine levels of 10 mg/kg and higher.
| DevelopmentNote |
Obsolete
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Standards | Relationship |
| ISO 3360:1976 | Similar to |
| BS 4427-10:1976 | Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of total phosphorus (V) oxide content: quinoline phosphomolybdate gravimetric method |
| BS 4258-4:1975 | Methods of test for phosphoric acid (orthophosphoric acid) for industrial use Determination of fluorine content |
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