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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

ISO 2997
Phosphoric acid for industrial use; Determination of sulphate content; Method by reduction and titrimetry

Title (German)

Phosphorsäure für Industriezwecke; Bestimmung des Sulfatgehaltes; titrimetrische Methode nach Reduktion

Responsible national committee

NA 054-03-03-01 AK - Physical and chemical recycling technologies

Responsible international committee

ISO/TC 47 - Chemistry

Edition 1974-11

Original language English

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

ISO 2997 Phosphoric acid for industrial use; Determination of sulphate content; Method by reduction and titrimetry

Responsible national committee

Responsible international committee

Stefanie Bierwirth

Want to learn more?

ISO 2997
Phosphoric acid for industrial use; Determination of sulphate content; Method by reduction and titrimetry