ISO/TS 21361:2025

International Standard   Current Edition · Approved on 19 March 2025

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

ISO/TS 21361:2025 Files

English 13 Pages
Current Edition
47.47 OMR

ISO/TS 21361:2025 Scope

This document specifies a method to quantify and identify air concentration (number of particles/cm3) of particles of either carbon black or amorphous silica, or both, by size in air samples collected in a mixed dust, industrial, manufacturing environment.

This method is applicable to air samples collected with an electrical low pressure cascade impactor (ELPCI) 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 where confounders can be controlled (e.g. diesel sources).

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