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ISO 22018:2021

Fertilizers, soil conditioners and beneficial substances — Determination of EDTA soluble phosphorus content in inorganic fertilizers ISO 22018:2021

Publication date:   Jul 7, 2021

General information

90.20   Standard under periodical review   Jul 15, 2026

ISO

ISO/TC 134 Fertilizers, soil conditioners and beneficial substances

International Standard

65.080   Fertilizers

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Scope

This document specifies the method for the determination of the EDTA soluble phosphorus content of inorganic fertilizers. The method is applicable for fertilizers composed of or blended from multiple sources such as superphosphate, ammonium phosphate, triple superphosphate, and/or nitrophosphate. It is not suitable for fertilizers containing calcium magnesium phosphates.

Life cycle

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PUBLISHED
ISO 22018:2021
90.20 Standard under periodical review
Jul 15, 2026




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