标准摘要
[中文适用范围]： 本文档规定了可直接在采样后立即在“野外”对样品进行预处理的方法。本文档中的预处理方法仅限于：旨在减少样品尺寸/体积的样品分割方法；复合样品的制备；以及从采样材料中选择特定组分。本文档不适用于需要进行生物或微生物检查的样品，不适用于采样以测定挥发性成分的土壤材料（这些土壤材料应按照ISO 22155进行采样），且不包含粒径减小的操作说明。 [外文原描述]： ISO 18400-201:2017 specifies methods for the pretreatment of samples that can be applied "in the field" directly after sampling. Pretreatment methods in this document are limited to: - sample division methods aimed at reducing the size/volume of the sample; - the production of composite samples; - the selection of a specific fraction of the sampled material. ISO 18400-201:2017 - does not apply to samples required for biological or microbiological examination, - does not apply to soil materials sampled for the content of volatile components, and NOTE 1 These soil materials are intended to be sampled according to ISO 22155. -? does not give instructions for particle size reduction. NOTE 2 Guidance for particle size reduction is given in ISO 11464, ISO 14507 and ISO 23909.
英文名称Soil quality — Sampling — Part 201: Physical pretreatment in the field