ISO/TS 20917:2023-肥料、土壤改良剂和有益物质无机肥料中柠檬酸铵、乙二胺四乙酸二钠可溶性磷和钾的ICP-OES测定-国家数字标准馆

现行 ISO/TS 20917:2023

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Fertilizers, soil conditioners and beneficial substances — Determination of ammonium citrate, disodium-EDTA soluble phosphorus and potassium by ICP-OES in inorganic fertilizers 肥料、土壤改良剂和有益物质无机肥料中柠檬酸铵、乙二胺四乙酸二钠可溶性磷和钾的ICP-OES测定

发布日期： 2023-07-27

本文件规定了测定肥料提取液中柠檬酸铵、乙二胺四乙酸二钠（EDTA）可溶性磷和钾含量的电感耦合等离子体发射光谱仪（ICP-OES）方法。
本文件适用于所有无机肥料产品，无论是复合肥还是复合肥产品或其混合物，以及直接浓缩肥料产品。

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.