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Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes
90.93 Standard confirmed
Water quality — Determination of free chlorine and total chlorine — Part 3: Iodometric titration method for the determination of total chlorine
90.93 Standard confirmed
Water quality — Determination of surfactants — Part 1: Determination of anionic surfactants by measurement of the methylene blue index (MBAS)
90.93 Standard confirmed
Water quality — Determination of surfactants — Part 1: Determination of anionic surfactants by measurement of the methylene blue index (MBAS) — Technical Corrigendum 1
60.60 Standard published
Water quality — Determination of surfactants — Part 2: Determination of non-ionic surfactants using Dragendorff reagent
90.93 Standard confirmed
Water quality — Determination of nitrate — Part 3: Spectrometric method using sulfosalicylic acid
90.93 Standard confirmed
Water quality — Determination of calcium and magnesium — Atomic absorption spectrometric method
90.93 Standard confirmed
Water quality — Determination of polycyclic aromatic hydrocarbons (PAH) — Part 1: Determination of six PAH by high-performance thin-layer chromatography with fluorescence detection after liquid-liquid extraction
90.93 Standard confirmed
Water quality — Determination of polycyclic aromatic hydrocarbons (PAH) — Part 2: Determination of six PAH by high-performance liquid chromatography with fluorescence detection after liquid-liquid extraction
90.93 Standard confirmed
Water quality — Determination of selected monovalent phenols — Part 1: Gas-chromatographic method after enrichment by extraction
90.20 Standard under periodical review
Water quality — Determination of selected monovalent phenols — Part 2: Method by derivatization and gas chromatography
90.93 Standard confirmed
Water quality — Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)
90.93 Standard confirmed
Water quality — Determination of cobalt, nickel, copper, zinc, cadmium and lead — Flame atomic absorption spectrometric methods
90.93 Standard confirmed
Water quality — Calibration and evaluation of analytical methods — Part 1: Linear calibration function
60.60 Standard published
Water quality — Calibration and evaluation of analytical methods and estimation of performance characteristics — Part 2: Calibration strategy for non-linear second-order calibration functions
90.93 Standard confirmed