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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-06-1976

Publisher

British Standards Institution

Foreword
Co-operating organizations
Method
1 Scope and field of application
2 Principle
3 Reagents
4 Apparatus
5 Procedure
6 Expression of results
7 Test report
Annex
ISO publications relating to condensed sodium
phosphates for industrial use

Describes a gravimetric method using quinoline phosphomolybdate for determining the total phosphorus oxide content of sodium tripolyphosphate and sodium pyrophosphate for industrial use. Includes principle, reagents, apparatus, procedure, expression of results and test report.

This International Standard specifies a gravimetric method using quinoline phosphomolybdate for the determination of the total phosphorus(V) oxide content of sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium diphosphate) for industrial use.

Committee	CII/34
DevelopmentNote	Also numbered as ISO 3357 Supersedes 74/51835 DC (08/2005) Reviewed & Confirmed by BSI, July 2017. (06/2017)
DocumentType	Standard
Pages	10
PublisherName	British Standards Institution
Status	Current

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

BS 4427-2:1969	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Measurement of pH value of sodium tripolyphosphate
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
BS 3978:1966	Specification for water for laboratory use
BS 4427-6:1974	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Estimation of pyrophosphate content of sodium pyrophosphate
BS 4427-5:1974	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of particle size distribution
BS 4427-3:1969	Methods of test for sodium tripolyphosphate ($7Ipenta$7Rsodium triphosphate) and sodium pyrophosphate ($7Itetra$7Rsodium pyrophosphate). Determination of iron content
BS 4427-8:1974	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of orthophosphate content
BS 4427-4:1969	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of loss on ignition
BS 4427-9:1975	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of fluorine content
BS 4427-7:1974	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Estimation of tripolyphosphate (triphosphate) content of sodium tripolyphosphate
BS 4427-1:1969	Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Determination of matter insoluble in water in sodium tripolyphosphate

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BS 4427-10:1976

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