GSO ISO 14820-2:2021
肥料和石灰材料 取样和样品制备 第2部分：样品制备

Fertilizers and liming materials — Sampling and sample preparation — Part 2: Sample preparation

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标准号

GSO ISO 14820-2:2021

发布

2021年

发布单位

GSO

当前最新

GSO ISO 14820-2:2021

 

 

适用范围

ISO 14820-2:2016 specifies methods for the reduction and preparation of samples of fertilizers and liming materials and sets out the requirements for sample preparation reports. It also specifies methods for the preparation of test samples and test portions from laboratory samples of fertilizer for subsequent chemical or physical analysis. It does not cover the preparation of samples for certain physical tests which require test portions of more than 2 kg. It is applicable to all fertilizers. NOTE The term "fertilizer" is used throughout the body of this part of ISO 14820 and is taken to include liming materials unless otherwise indicated.

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