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ISO 23695:2023 EN
Water quality — Determination of ammonium nitrogen in water — Small-scale sealed tube method
现行
发布日期 :
2023-02-02
实施日期 :
ISO 21793:2020 EN
Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved bound phosphorus (DPb) after wet chemical catalysed ozone hydroxyl radical oxidation (COHR)
现行
发布日期 :
2020-09-02
实施日期 :