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ČSN is a protected designation of Czech national technical standards.
Průmyslová hnojiva. Močovina. Metody zkoušení.
WITHDRAWN published on 11.4.1988
Selected format:Organo-mineral fertilizers - Identification of chelating agents - Part 1: Determination of EDTA, HEEDTA and DTPA by ion chromatography
Standard published on 1.1.2023
Selected format:Organo-mineral fertilizers - Identification of chelating agents - Part 2: Determination of Fe chelated by [o,o] EDDHA, [o,o] EDDHMA and HBED, or the amount of chelating agents by ion pair chromatography
Standard published on 1.1.2023
Selected format:Organo-mineral fertilizers - Determination of the chelated micronutrient content and the chelated fraction of micronutrients by treatment with a cation exchange resin
Standard published on 1.1.2023
Selected format:Inorganic fertilizers - Determination of chelating and complexing agents
Standard published on 1.1.2023
Selected format:Inorganic fertilizers - Determination of nitrogen content in IBDU (isobutylidenediurea) and CDU (crotonylidenediurea)
Standard published on 1.8.2024
Selected format:Inorganic fertilizers - Determination of nutrient polymers nitrogen in the presence of other nitrogenous forms
Standard published on 1.6.2026
Selected format:Plant biostimulants - Claims - Part 1: General principles
Standard published on 1.5.2025
Selected format:Plant biostimulants - Claims - Part 2: Nutrient use efficiency resulting from the use of a plant biostimulant
Standard published on 1.5.2025
Selected format:Plant biostimulants - Claims - Part 3: Tolerance to abiotic stress resulting from the use of a plant biostimulant
Standard published on 1.5.2025
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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