BS 4427-15:1982
Withdrawn
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Condensed phosphates for industrial use (including foodstuffs) - determination of oxides of nitrogen content - 3,4-xylenol spectrophotometric method
Hardcopy , PDF
English
11-30-1982
12-01-2011
National foreword
Cooperating organizations
Method
1 Scope
2 Field of application
3 Principle
4 Reagents
5 Apparatus
6 Procedure
7 Expression of results
8 Test report
Annex
ISO publications relating to condensed phosphates for
industrial use (including foodstuffs)
Figure
Typical distillation apparatus
Applicable to products having an oxide of nitrogen content, expressed as nitrogen (N), equal to or greater than 2 mg/kg.
| Committee |
CII/34
|
| DevelopmentNote |
Also numbered as ISO 5375 Supersedes 77/52778 DC (08/2005)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| BS 4427-13:1982 | Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Condensed phosphates for industrial use (including foodstuffs) - determination of calcium content - flame atomic absorption spectrometric method |
| BS 4427-12:1979 | Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Condensed phosphates for industrial use (including foodstuffs). Determination of arsenic content. Silver diethyldithiocarbamate photometric method |
| BS 4427-14:1982 | Methods of test for sodium tripolyphosphate (<i>penta</i>sodium triphosphate) and sodium pyrophosphate (<i>tetra</i>sodium pyrophosphate) for industrial use. Condensed phosphates for industrial use (including foodstuffs) - determination of chloride content - potentiometric method |
| BS 4427-13:1982 | Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Condensed phosphates for industrial use (including foodstuffs) - determination of calcium content - flame atomic absorption spectrometric method |
| BS 4427-14:1982 | Methods of test for sodium tripolyphosphate (<i>penta</i>sodium triphosphate) and sodium pyrophosphate (<i>tetra</i>sodium pyrophosphate) for industrial use. Condensed phosphates for industrial use (including foodstuffs) - determination of chloride content - potentiometric method |
| BS 572:1960 | Interchangeable conical ground glass joints |
| BS 4427-12:1979 | Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Condensed phosphates for industrial use (including foodstuffs). Determination of arsenic content. Silver diethyldithiocarbamate photometric method |
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