ISO 3361:1975 PDF
Phosphoric acid for industrial use — Determination of soluble silica content — Reduced molybdosilicate spectrophotometric method
Open preview (PDF)Phosphoric acid for industrial use — Determination of soluble silica content — Reduced molybdosilicate spectrophotometric methodTitle (English):
ISO 3361:1975
Phosphoric acid for industrial use — Determination of soluble silica content — Reduced molybdosilicate spectrophotometric method
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 4
- Publication date:
- July 1, 1975
- Edition:
- ISO IS 3361 edition 1 version 1
- ICS:
- 71.060.30
Description (English):
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.
Technical details
- Technical committee
- ISO/TC 47 - Chemistry
- SKU
- ISO 3361:1975
