HJ/T 399-2007Water quality. Determination of the chemical oxygen demand. Fast digestion-spectrophotometric method (English PDF)
水质 化学需氧量的测定 快速消解分光光度法
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Issued by
Ministry of Ecology and Environment
Level / Type
National · Recommended
Issue date
December 7, 2007
Implementation date
March 1, 2008
Scope
HJ/T 399-2007 is the English-translated version of 水质 化学需氧量的测定 快速消解分光光度法.
HJ/T 399-2007 — This standard specifies the quality of chemical oxygen demand rapid digestion scenery spectrophotometric method. This standard applies to surface water, groundwater, sewage and industrial effluent COD determination.
This standard undiluted water samples, the COD determination limit of 15mg/L, measured a maximum of 1000mg/L, its chloride ion concentration should not exceed 1000mg/L.
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Document preview — HJ/T 399-2007
National Standard of the People's Republic of China
- ICS
- 13.060.01
- Classification
- Z 23
Issued by: Ministry of Ecology and Environment
Contents
- What this standard covers1
- Document data2
- Standards quoted by this document3
What this standard covers
This standard specifies the quality of chemical oxygen demand rapid digestion scenery spectrophotometric method. This standard applies to surface water, groundwater, sewage and industrial effluent COD determination. This standard undiluted water samples, the COD determination limit of 15mg/L, measured a maximum of 1000mg/L, its chloride ion concentration should not exceed 1000mg/L. This standard for chemical oxygen demand greater than 1000mg/L or chlorine ion content greater than 1000mg/L in water samples can be measured after appropriate dilution.
Document data
International classification (ICS): 13.060.01.
Chinese classification (CCS): Z23.
Estimated length of the Chinese original: 12,172 words.
Standards quoted by this document
GB/T 6682; GB/T 11896; JJG 975
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.
Referenced standards
Cited by
- GB 4287-2026Discharge standard of water pollutants for textile industry
- GB 13457-2025Discharge standard of water pollutants for slaughter and meat processing industry
- GB 19821-2025Discharge standard of water pollutants for fermented alcohol and alcoholic manufacturing industry
- GB 46817-2025Discharge standard of water pollutants for food processing and manufacturing industry
- GB 16889-2024Standard for pollution control on the landfill site of municipal solid waste
- GB 18598-2019Standard for pollution control on the hazardous waste landfill
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