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ISO/TS 20917
Fertilizers, soil conditioners and beneficial substances - Determination of ammonium citrate, disodium-EDTA soluble phosphorus and potassium by ICP-OES in inorganic fertilizers
Edition
2023-07
Untersuchung von Abfall, Boden und Wasser
Begriffe
Edition
2016-01
ISO/TR 7553
Fertilizers; Sampling; Minimum mass of increment to be taken to be representative of the total sampling unit
Edition
1987-07