ISO/TS 21361:2019 纳米技术 混合粉尘制造环境中纳米颗粒大小范围内的炭黑和非晶态二氧化硅空气浓度的定量方法

标准编号：ISO/TS 21361:2019

中文名称：纳米技术 混合粉尘制造环境中纳米颗粒大小范围内的炭黑和非晶态二氧化硅空气浓度的定量方法

英文名称：Nanotechnologies — Method to quantify air concentrations of carbon black and amorphous silica in the nanoparticle size range in a mixed dust manufacturing environment

发布日期：2019-04

标准范围

This document provides guidelines to quantify and identify air concentration (number of particles/
cm³ ) of particles of carbon black and/or amorphous silica by size in air samples collected in a mixed 
dust industrial manufacturing environment.
The method is defined for air samples collected with an electrical low pressure cascade impactor 
(ELPCI).  on a 25 mm polycarbonate substrate. The method is suitable for sampling in manufacturing 
environments where there are a variety of particle types contributing to the overall atmosphere. 
This method is applicable only to environments with chemically and physically distinct particles 
contributing to aerosols or when confounders can be controlled (e.g. diesel sources). Other sampling 
methods can also be suitable, though this document is limited to describing methods associated with 
the electrical low pressure cascade impactor.
Samples collected with the electrical low pressure cascade impactor are analyzed via TEM and EDS to 
for particle morphology and elemental composition, respectively, to permit identification of particles 
by type. This information is then used, in conjunction with particle concentration by size range, 
as determined by the electrical low pressure cascade impactor, to determine concentration of the 
materials of interest by size.

标准预览图