
Fertilizers, soil conditioners and beneficial substances — Determination of ammonium citrate, disodium-EDTA soluble phosphorus and potassium by ICP-OES in inorganic fertilizers
NORM herausgegeben am 27.7.2023
Designation standards: ISO/TS 20917:2023
Publication date standards: 27.7.2023
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: International technical standard
Kategorie: Technische Normen ISO
Description / Abstract: This document specifies an inductively coupled plasma-optical emission spectrometer (ICP-OES) method for the determination of the ammonium citrate, disodium-etheylenediamine tetraacetic acid (EDTA) soluble phosphorus and potassium content in fertilizer extract solutions. This document is applicable to all inorganic fertilizer products, whether compound or complex fertilizer products or blends thereof, and straight concentrated fertilizer products.