HJ 195-2023Water quality - Determination of ammonia nitrogen - Gas-phase molecular absorption spectrometry (English PDF)
水质 氨氮的测定 气相分子吸收光谱法
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Issued by
Ministry of Ecology and Environment
Level / Type
National · Mandatory
Issue date
November 27, 2023
Implementation date
June 1, 2024
Scope
HJ 195-2023 is the English-translated version of 水质 氨氮的测定 气相分子吸收光谱法.
HJ 195-2023 — This standard specifies the gas phase molecular absorption spectrometry method for the determination of ammonia nitrogen in water. This standard is applicable to the determination of ammonia nitrogen (measured in N) in surface water, groundwater, domestic sewage, industrial wastewater and seawater.
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Document preview — HJ 195-2023
National Standard of the People's Republic of China
- Classification
- Z 16
Issued by: Ministry of Ecology and Environment
Contents
- What this standard covers1
- Document data2
What this standard covers
This standard specifies the gas phase molecular absorption spectrometry method for the determination of ammonia nitrogen in water. This standard is applicable to the determination of ammonia nitrogen (measured in N) in surface water, groundwater, domestic sewage, industrial wastewater and seawater. The detection limit of the method is 0.02 mg/L, and the lower determination limit is 0.08 mg/L.
Document data
Chinese classification (CCS): Z16.
Estimated length of the Chinese original: 9,994 words.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 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 16889-2024Standard for pollution control on the landfill site of municipal solid waste
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