ISO 18400-101:2017规定了在制定和应用抽样计划时应采取的程序要素。采样计划除其他事项外，还描述了为了实现调查计划的目标，将采集哪些实验室样本、如何采集以及从何处采集样本。本文件中概述的原则或基本规则提供了一个框架，可用于 -制定标准化的抽样计划，以便在更常规或常规的情况下使用， -纳入国家立法的具体要求，以及 -设计并制定一个抽样计划，以便在个案基础上使用。 ISO 18400-101:2017适用于土壤和土壤材料的取样，更具体地说，例如:。 -景观中的土壤， -土壤储备， -潜在污染场所， -农业土壤， -垃圾填埋场，以及 -森林土壤。 最终，采样计划为采样器提供了如何进行采样的详细说明。 注1:可能需要一个以上的抽样计划来满足调查计划的所有要求。 注2:有时，将现场或地上沉积物（如储存）划分为两个或多个区域，并为每个区域制定单独的采样计划可能是合适的。例如，一个（可能）受污染的场地可能会根据过去的用途、未来的用途、地形或地质进行分区，而一个农业场地可能会根据已知或怀疑的土壤类型或用途（牧场、作物类型等）进行分区。

ISO 18400-101:2017 specifies the procedural elements to be taken in the preparation and application of a sampling plan. The sampling plan describes among other things what laboratory samples are to be taken, how they are to be taken and from where they are to be taken, in order that the objectives of the investigation programme can be achieved. The principles or basic rules outlined in this document provide a framework that can be used to - produce standardized sampling plans for use in more regular or routine circumstances, - incorporate the specific requirements of national legislation, and - design and develop a sampling plan for use on a case-by-case basis. ISO 18400-101:2017 is applicable to sampling of soil and soil material, more specifically, e.g. - soil in the landscape, - soil stockpiles, - potentially contaminated sites, - agricultural soils, - landfills, and - forest soils. Ultimately, the sampling plan provides the sampler with detailed instructions on how sampling should be carried out. NOTE 1 There might be a need for more than one sampling plan to meet all the requirements of the investigation programme. NOTE 2 It might sometimes be appropriate to divide a site or above-ground deposit (e.g. stockpile) into two or more zones and to develop separate sampling plans for each zone. For example, a (potentially) contaminated site might be zoned on the basis of past use, future use, topography or geology and an agricultural site on the basis of known or suspected soil types or use (pasture, type of crops, etc.).