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
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1ST EDITION
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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.
To find similar documents by classification:
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