本文件规定了在合适的收集基板上采样的空气颗粒中金属和类金属测量程序评估的性能要求和试验方法。 本文件规定了一种方法，用于估算与随机和系统误差相关的不确定度，并根据ISO 20581的规定，将它们结合起来计算整个测量程序的扩展不确定度。 本文件适用于在不同阶段进行取样和分析的测量程序，但未规定样品收集、运输和储存的性能要求，因为这些要求在EN 13205-1和ISO 15767中有规定。 本文件不适用于测量以无机气体或蒸汽（如汞、砷）形式存在的金属或类金属的程序，也不适用于测量可能以颗粒/蒸汽混合物形式存在的化合物中的金属和类金属的程序（如。 g、 三氧化二砷）。

This document specifies performance requirements and test methods for the evaluation of procedures for measuring metals and metalloids in airborne particles sampled onto a suitable collection substrate. This document specifies a method for estimating the uncertainties associated with random and systematic errors and combining them to calculate the expanded uncertainty of the measuring procedure as a whole, as prescribed in ISO 20581. This document is applicable to measuring procedures in which sampling and analysis is carried out in separate stages, but it does not specify performance requirements for collection, transport and storage of samples, since these are addressed in EN 13205-1 and ISO 15767. This document does not apply to procedures for measuring metals or metalloids present as inorganic gases or vapours (e.g. mercury, arsenic) or to procedures for measuring metals and metalloids in compounds that could be present as a particle/vapour mixture (e.g. arsenic trioxide).