ISO 3361:1975
Withdrawn
Phosphoric acid for industrial use — Determination of soluble silica content — Reduced molybdosilicate spectrophotometric method
Hardcopy , PDF
English, French
07-01-1975
04-12-2019
Specifies a reduced molybdosilicate spectrophotometric method for the determination of the soluble silica content of phosphoric acid for industrial use. The method can be used for the determination of 1 µg of soluble silica in the presence of 20 mg of phosphorus pentoxide. It is thus, for example, applicable to the determination of soluble silica contents greater than 30 mg/kg if the phosphoric acid contains 60 % of phosphorus pentoxide.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| BS 4258-5:1989 | Similar to |
| BS 4258-5:1975 | Similar to |
| NBN T 03 266 : 1980 | Identical |
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