HG 2221-1991
Volumetric method for determination of free acid content in double superphosphate (English Version)

Standard No.

HG 2221-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

Professional Standard - Chemical Industry

Latest

HG 2221-1991

Scope

This standard specifies the volumetric method for the determination of free acid content in double superphosphate. This standard is applicable to the determination of free acid (calculated as P2O6) content in double superphosphate.

HG 2221-1991 history

• 1991 HG 2221-1991 Volumetric method for determination of free acid content in double superphosphate