NF T20-474:1973
Phosphoric acid for industrial use. Determination of silica content. Spectrophotometric method using the reduced silicomolybdic complex.

Standard No.

NF T20-474:1973

Release Date

1973

Published By

Association Francaise de Normalisation

Status

Withdraw

Latest

NF T20-474:1973

NF T20-474:1973 history

• 1973 NF T20-474:1973 Phosphoric acid for industrial use. Determination of silica content. Spectrophotometric method using the reduced silicomolybdic complex.