GB/T 20466-2006
Active
T/NAIA 0161-2022
Active
Group standards
T/NAIA 0161-2022 Determination of Chemical Oxygen Demand in Coal Mine Water with High Chloride Content using Silver Salt Precipitation-Reaction with Reactive Red Method
T/NAIA 0161-2022 Determination of Chemical Oxygen Demand in Coal Mine Water with High Chloride Content using Silver Salt Precipitation-Reaction with Reactive Red Method
Price:
$ 20.00
Basic Information
Standard Code:
T/NAIA 0161-2022
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
\nChemical testing of water
Publish Date:
2022-11-18
Implement Date:
2022-12-01
Scope
Main technical content: This document specifies the silver salt precipitation- dichromate method for determining the chemical oxygen demand in high-chlorine mine water. This document is applicable to the determination of chemical oxygen demand in high-chlorine mine water in coal mines. The chloride ion content range is 1000-7000 mg/L. When the chloride ion content exceeds this limit, the determination can be diluted. When the sampling volume is 10.0 ml, the detection limit of this method is 4 mg/L, and the determination limit is 16 mg/L.
Development Information
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