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BS 4258-4:1975
M00001434
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BS 4258-4:1975 Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of fluorine content
standard by BSI Group, 01/30/1976
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Photometric method applicable to fluorine levels of 10 mg/kg and higher.Cross References:
BS 1792
BS 3978
BS 4427:Part 9