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GSO ISO 16588:2013/Amd1:2025
ISO 16588:2002/Amd 1:2004
Amendment to Gulf Standard
Water quality – Determination of six complexing agents – Gas-chromatographic method
ISO 18724:2025
International Standard
Water quality — Determination of dissolved chromium(VI) in water — Photometric method
ISO 13646:2025
International Standard
Water quality — Determination of selected estrogens in whole water samples — Method using solid phase extraction (SPE) followed by liquid chromatography (LC) or gas chromatography (GC) coupled to mass spectrometry (MS) detection
GSO ISO 22743:2008/Cor 1:2025
ISO 22743:2006/Cor 1:2007
Gulf Standard
Water quality — Determination of sulfates — Method by continuous flow analysis (CFA)
ISO 24384:2024
International Standard
Water quality — Determination of chromium(VI) and chromium(III) in water — Method using liquid chromatography with inductively coupled plasma mass spectrometry (LC-ICP-MS) after chelating pretreatment
ISO 20236:2024
International Standard
Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
GSO ISO 21793:2024
ISO 21793:2020
Gulf Standard
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)
ISO 17294-1:2024
International Standard
Water quality — Application of inductively coupled plasma mass spectrometry (ICP-MS) — Part 1: General requirements
GSO ISO 23697-1:2024
ISO 23697-1:2023
Gulf Standard
Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes — Part 1: Dimethylphenol colour reaction
GSO ISO 23695:2024
ISO 23695:2023
Gulf Standard
Water quality — Determination of ammonium nitrogen in water — Small-scale sealed tube method
GSO ISO 23696-2:2024
ISO 23696-2:2023
Gulf Standard
Water quality — Determination of nitrate in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction
ISO 23256:2023
International Standard
Water quality — Detection of selected congeners of polychlorinated dibenzo-p-dioxins and polychlorinated biphenyls — Method using a flow immunosensor technique