GB 11897-1989
Determination of free chlorine and total chlorine in water quality N,N-diethyl-1,4-phenylenediamine titration method (English Version)

Standard No.

GB 11897-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 11897-1989

GB 11897-1989 history

• 1989 GB 11897-1989 Determination of free chlorine and total chlorine in water quality N,N-diethyl-1,4-phenylenediamine titration method