本文件规定了粉末状工程纳米颗粒样品的基本特性，以确定尺寸、化学含量和表面积。本文件还规定了确定每个特性的测量方法。 它旨在促进消费者、监管机构和具有必要特征的行业之间的沟通。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the fundamental characteristics to be measured of a sample of engineered nanoparticles in powder form to determine the size, the chemical content and the surface area. This document also specifies measurement methods for determining each of the characteristics. It is intended to facilitate communication among consumers, regulators and industries with the necessary characteristics.All current amendments available at time of purchase are included with the purchase of this document.