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Water quality - Determination of selected parameters by discrete analysis systems - Part 1: Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection (ISO 15923-1:2013); German version EN ISO 15923-1:2024

Meat and meat products - Determination of nitrite and nitrate - Continuous flow analysis (CFA) method

Nitrate, nitrite

Nitrate, nitrite

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