ISO-20917 Fertilizers, soil conditioners and beneficial substances - Determination of ammonium citrate, disodium-EDTA soluble phosphorus and potassium by ICP-OES in inorganic fertilizers

ISO-20917 - 1ST EDITION - CURRENT


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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.

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65.080 (Fertilizers Including soil conditioners and culture medium)

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Document Number

ISO/TS 20917:2023

Revision Level

1ST EDITION

Status

Current

Publication Date

July 1, 2023

Committee Number

ISO/TC 134