Nanomaterials – Quantification of nano-object release from powders by generation of aerosols

Nanomaterials – Quantification of nano-object release from powders by generation of aerosols

Standard Number DS/ISO/TS 12025:2021
Organization Danish Standards Denmark
Level National
Category Test Method | Characterization | Measurement
Status
  • JUN 2021 Published
ABSTRACT
This document describes methods for the quantification of nano-object release from powders as a result of treatment, ranging from handling to high energy dispersion, by measuring aerosols liberated after a defined aerosolization procedure. Particle number concentration and size distribution of the aerosol are measured and the mass concentration is derived. This document provides information on factors to be considered when selecting among the available methods for powder sampling and treatment procedures and specifies minimum requirements for test sample preparation, test protocol development, measuring particle release and reporting data. In order to characterize the full size range of particles generated, the measurement of nano-objects as well as agglomerates and aggregates is adressed in this document. This document does not include the characterization of particle sizes within the powder. Tribological methods are excluded where direct mechanical friction is applied to grind or abrade the material.