MT/T 257-2000
Determination method of free carbon dioxide in coal mine water (English Version)

Standard No.

MT/T 257-2000

Language

Chinese, Available in English version

Release Date

2000

Published By

Professional Standard - Coal

Latest

MT/T 257-2000

Replace

MT 257-1991

Scope

This standard specifies the determination of free carbon dioxide in coal mine water by alkali titration. This standard is applicable to the determination of free carbon dioxide in coal mine water. Under the conditions specified in this standard, the measurement range of free carbon dioxide is 0.1~50 mg/L. This standard is not applicable to the determination of free carbon dioxide in water samples with a dissolved solids concentration greater than 1000 mg/L or a total hardness (calculated as CaCO2) greater than 500 mg/L or containing acids other than carbonic acid.

MT/T 257-2000 history

• 2000 MT/T 257-2000 Determination method of free carbon dioxide in coal mine water
• 1991 MT 257-1991 Determination method of free carbon dioxide in coal mine water

MT/T 257-2000 Determination method of free carbon dioxide in coal mine water has been changed from MT 257-1991 Determination method of free carbon dioxide in coal mine water.