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1 Scope This document specifies a method for the determination of nitrate as NO 3 -N in water of various origin such as natural water (including groundwater, surface water and bathing water), drinkin…
Overview SIST EN ISO 23696-1:2026 establishes a standardized method for the determination of nitrate (as NO3-N) in water using small-scale sealed tubes based on the dimethylphenol colour reaction. De…
Overview EN ISO 23696-1:2025 (identical to ISO 23696-1:2023) specifies a photometric method for determination of nitrate as NO3‑N in water using small-scale sealed tubes based on the dimethylphenol c…
Overview ISO 23696-1:2023 specifies a standardized, small-scale sealed-tube method for the determination of nitrate as NO3‑N in various water matrices (natural waters, drinking water, bathing water a…