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Chemical analysis methods for rare earth residue and waste water—Part 2:Determination of chemical oxygen demand(COD)
Standard in brief
This standard specifies methods for the determination of chemical oxygen
demand(COD)in rare earth residue leachates and waste water that
produced from mining, beneficiation and smelting.
This standard is applicable to the determination of chemical oxygen
demand(COD)in rare earth residue leachates and waste water from mining,
beneficiation and smelting.This document consists of two methods:
Method 1: Potassium dichromate titrimetric method
Method 2: Chlorine emendation method
The determination ranges of Method 1 and Method 2 are seen in Table 1.
Basic information
Standard No： GB/T 34500.2-2017e
Standard Name：稀土废渣、废水化学分析方法 第2部分：化学需氧量(COD)的测定
English Name：Chemical analysis methods for rare earth residue and waste water—Part 2:Determination of chemical oxygen demand(COD)
Standard Status：In force
Release Date：2017-10-14
Effective Date：2018-05-01
Language of Publication：English
Publication Information
Number of pages：24
Number of words：38 K
Other Information
Technical Committees：SAC/TC 229 National Technical Committee on Rare Earth of Standardization Administration of China.
Proposed Unit：SAC/TC 229 National Technical Committee on Rare Earth of Standardization Administration of China.
Application Dept：General Administration of Quality Supervision,Inspection and
Quarantine of the People's Republic of China and Standardization
Administration of the People's Republic of China
