BSI BS 4258-4:1975

Current Revision
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use -- Determination of fluorine content

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BSI BS 4258-4:1975

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use -- Determination of fluorine content

PUBLISH DATE 1976
PAGES 12
BSI BS 4258-4:1975

This Part of BS 4258 specifies an alizarin complexone and lanthanum (III) nitrate photometric method for the determination of the fluorine content of orthophosphoric acid for industrial and food uses.

The method is applicable to products whose fluorine (F) content is equal to or greater than 10 mg/kg.

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

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