BS 4427-11:1983
Withdrawn
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
Hardcopy , PDF
English
02-28-1983
05-22-2026
Foreword
Cooperating organizations
Method
1 Scope
2 Principle
3 Reagents
4 Apparatus
5 Procedure
6 Expression of results
7 Test report
Appendix
A Determination of phosphorus (V) oxide in the eluates
obtained by chromatographic separation of a column
Table
1 Concentrations of standard matching solutions and
corresponding optical path lengths of cells
Figures
1 Ion-exchange column with dropping funnel
2 Ion-exchange colume with typical syphon device
3 Typical graph obtained during the determination of
the elution conditions
Determination of ortho-, pyro- and tripolyphosphates, and higher condensed phosphate forms, in the absence of $7Itetra$7R- and $7Ipenta$7R-metaphosphates.
| Committee |
CII/34
|
| DevelopmentNote |
Supersedes 82/52542 DC. (08/2005) Reviewed and confirmed by BSI, December 2011. (11/2011)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
Withdrawn:This standard is no longer used
| Standards | Relationship |
| UNE-EN ISO 12625-4:2023 | Identical |
| 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 4427-10:1976 | 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 3978:1966 | Specification for water for laboratory use |
| BS 4427-8:1974 | Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of orthophosphate content |
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