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    • Examination of water for chemical substances
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    DS/ISO 22066:2020

    Water quality – Determination of total cyanide – Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection

    Danish Standards

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    DS/ISO 21793:2020

    Water test - 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 aqueous chemically catalyzed ozone hydroxyl radical oxidation

    Danish Standards

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    ISO 21793:2020

    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)

    International Organization for Standardization

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    ÖNORM EN ISO 21253-2: 2020 04 15

    Water quality - Multi-compound class methods - Part 2: Criteria for the quantitative determination of organic substances using a multi-compound class analytical method (ISO 21253-2:2019)

    Osterreichisches Normungsinstitut/Austrian Standards

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    ÖNORM EN ISO 5815-1:2020 03 15

    Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815-1:2019)

    Osterreichisches Normungsinstitut/Austrian Standards

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    PN-EN ISO 21253-2:2020-03

    Water quality - Methods for many classes of compounds - Part 2: Criteria for the quantitative determination of organic compounds using an analytical method for many classes of compounds

    Polish Committee for Standardization

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    PN-EN ISO 21253-1:2020-03

    Water quality - Methods for many classes of compounds - Part 1: Criteria for identification of target compounds by means of gas and liquid chromatography with mass spectrometry

    Polish Committee for Standardization

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    UNE-EN ISO 12010:2020

    Water quality - Determination of short-chain polychlorinated alkanes (SCCP) in water - Method using gas chromatography-mass spectrometry (GC-MS) and negative-ion chemical ionization (NCI) (ISO 12010:2019)

    Asociacion Espanola de Normalizacion

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    NS-EN ISO 21253-1:2019

    Water quality - Multi-compound class methods - Part 1: Criteria for the identification of target compounds by gas and liquid chromatography and mass spectrometry (ISO 21253-1:2019)

    Norwegian Standards (Norges Standardiseringsforbund)

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    NS-EN ISO 21253-2:2019

    Water quality - Multi-compound class methods - Part 2: Criteria for the quantitative determination of organic substances using a multi-compound class analytical method (ISO 21253-2:2019)

    Norwegian Standards (Norges Standardiseringsforbund)

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