NP 1346-1976
Phosphoric acid used in industry. Measurement of silica composition by photometry

Standard No.

NP 1346-1976

Release Date

1976

Published By

PT-IPQ

Latest

NP 1346-1976

Scope

This Standard is intended to establis how to determine the soluble silica content in phosphoric acid for industrial uses, using the spectrophotometric process with molybdate.

NP 1346-1976 history

• 1976 NP 1346-1976 Phosphoric acid used in industry. Measurement of silica composition by photometry