BS 4427-8:1974
Withdrawn
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of orthophosphate content
Hardcopy , PDF
English
06-07-1974
02-29-1992
Photometric method using the reduced molybdophosphoric complex. Applicable to materials with orthophosphate contents, expressed as P2O5, between 0.05 per cent and 1.0 per cent.
| DevelopmentNote |
Obsolete
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| 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 4427-11:1983 | Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Separation by column chromatography and determination of the different phosphate forms |
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