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DIN EN ISO 23696-1

Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23696-1:2023); German and English version prEN ISO 23696-1:2025

Project

DIN EN ISO 23696-2

Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023); German and English version prEN ISO 23696-2:2025

Project

ISO/DIS 19643

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

Committees

NA 057-01-07 AA

Nitrate, nitrite

Committees

CEN/TC 275/WG 7

Nitrate, nitrite

Project

prEN ISO 23696-1

Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23696-1:2023)

Project

prEN ISO 23696-2

Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023)

Project

DIN EN 13654-1

Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method

Project

prEN 13654-1 rev

Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method

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