BS 4427-9:1975

Withdrawn

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

Available format(s)

Hardcopy , PDF

Withdrawn date

29-02-1992

Language(s)

English

Published date

30-01-1976

Publisher

British Standards Institution

Photometric method applicable to fluorine levels of 10 mg/kg and higher.

DevelopmentNote	Obsolete
DocumentType	Standard
Pages	12
PublisherName	British Standards Institution
Status	Withdrawn

Standards	Relationship
ISO 3360:1976	Similar to

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 4258-4:1975	Methods of test for phosphoric acid (orthophosphoric acid) for industrial use Determination of fluorine content