BSI - BS 4258-5
Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use Part 5: Determination of Silica Content
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| Organization: | BSI |
| Publication Date: | 29 September 1989 |
| Status: | active |
| Page Count: | 8 |
| ICS Code (Acids): | 71.060.30 |
scope:
Applicable to silica contents not less than 30 mg/kg.
Document History
BS 4258-5
September 29, 1989
Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use Part 5: Determination of Silica Content
Applicable to silica contents not less than 30 mg/kg.
January 30, 1976
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of silica content
Spectrophotometric method using the reduced molybdosilicate, applicable to not less than 1µg of silica in the presence of not more than 20 mg of P2O5.
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