Reference number
ISO/TS 12025:2021
Technical Specification
ISO/TS 12025:2021
Nanomaterials — Quantification of nano-object release from powders by generation of aerosols
Edition 2
2021-05
Technical Specification
Read sample
ISO/TS 12025:2021
73131
Published (Edition 2, 2021)
This publication was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO/TS 12025:2021

ISO/TS 12025:2021
73131
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Format
CHF 151
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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.

General information

  •  : Published
     : 2021-05
    : International Standard confirmed [90.93]
  •  : 2
     : 32
  • ISO/TC 229
    07.120 
  • RSS updates

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