本文件规定了通过spICP-MS可靠检测、表征和定量水悬浮液中纳米物体的参数、条件和注意事项。 颗粒数浓度、颗粒质量、颗粒质量浓度、颗粒球形当量直径和基于数量的尺寸分布被认为是主要的被测对象，但该技术也允许确定样品中溶解元素的质量分数。本文件提供了与spICP MS应用相关的一般指南和程序，并规定了最低报告要求。

This document specifies parameters, conditions and considerations for the reliable detection, characterization and quantification of nano-objects in aqueous suspension by spICP-MS. Particle number concentration, particle mass, particle mass concentration, particle spherical equivalent diameter, and number-based size distribution are considered the main measurands, but the technique also allows for determination of the dissolved element mass fraction in the sample. This document provides general guidelines and procedures related to spICP-MS application, and specifies minimal reporting requirements.