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BS 4427-6:1974

BS 4427-6:1974

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Current

The latest, up-to-date edition.

Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use Estimation of pyrophosphate content of sodium pyrophosphate

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

06-07-1974

Publisher

British Standards Institution

NO CONTENTS SECTION

Potentiometric method after conversion of the tetrasodium pyrophosphate to disodium dihydrogen pyrophosphate and precipitation of the pyrophosphate with liberation of sulphuric acid. Applicable to products containing at least 90 per cent of tetrasodium pyrophosphate and in the absence of more condensed forms of phosphate.

This Part of BS 4427 specifies a potentiometric method for the estimation of the pyrophosphate content of tetrasodium pyrophosphate for industrial use.

NOTE The titles of the British Standards referred to in this Part are listed on the inside back cover.

Committee
CII/34
DevelopmentNote
Supersedes 72/55290 DC. (08/2005) Reviewed and confirmed by BSI, December 2011. (11/2011)
DocumentType
Standard
Pages
8
PublisherName
British Standards Institution
Status
Current

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 1792:1960 One-mark volumetric flasks
BS 2586:1965 Glass electrodes for the measurement of pH
BS 3145(1976) : LATEST
BS 3422(1961) : LATEST LABORATORY DEFLECTION pH METERS

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