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BSI PD CEN ISO/TS 12025:2021

BSI PD CEN ISO/TS 12025:2021

$167.15

Nanomaterials – Quantification of nano-object release from powders by generation of aerosols (ISO/TS 12025:2021)

Published By Publication Date Number of Pages
BSI 2021 40
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms
10 3.2 Terms related to particle properties and measurement
13 4 Symbols
5 Factors influencing results of nano-object release from powders
5.1 Test generation method selection
5.2 Material properties influencing nano-object release from powder
14 5.3 Test stages
15 6 Test requirements
6.1 General
6.2 Safety assessment
16 6.3 Sample preparation
6.4 Sample treatment
6.4.1 Dustiness generation methods
17 6.4.2 Dispersing methods for aerosol generation
6.4.3 Sample treatment execution and report
18 6.5 Measurement of aerosolized nano-objects
6.5.1 Selection of the measuring method
19 6.5.2 Transport and sampling parameters
20 6.5.3 Considerations before testing
6.5.4 Size and concentration measurement results
22 6.5.5 Particle size distribution and other characteristic measurement parameters
23 7 Requirements for test setups and protocols
8 Test report
25 Annex A (informative) Considerations for the selection of the sample treatment procedure
27 Annex B (informative) Dustiness reference test methods
30 Annex C (informative) Dynamic method
33 Annex D (informative) Dispersing methods
34 Annex E (informative) Selection of the nano-object measuring method
36 Annex F (informative) Dry dispersion intensity in measuring devices
37 Bibliography

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BSI PD CEN ISO/TS 12025:2021
$167.15