CNS 7251-1981
Methods of Test for Chemical Oxygen Demand (CODMn) in Water (English Version)

Standard No.

CNS 7251-1981

Language

Chinese, Available in English version

Release Date

1981

Published By

Taiwan Provincial Standard of the People's Republic of China

Latest

CNS 7251-1981

Scope

This standard specifies the following two methods for testing the chemical oxygen demand of industrial wastewater (including business sites) using potassium permanganate. (a) Potassium permanganate method at 100oC. (b) Potassium permanganate method at 20oC.

CNS 7251-1981 history

• 1981 CNS 7251-1981 Methods of Test for Chemical Oxygen Demand (CODMn) in Water