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BSI PD CEN ISO/TS 12025:2021 – TC:2022 Edition

BSI PD CEN ISO/TS 12025:2021 – TC:2022 Edition

$217.84

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

Published By Publication Date Number of Pages
BSI 2022 100
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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
1 30444291
61 A-30425398
62 National foreword
64 European foreword
66 Foreword
67 Introduction
69 1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms
70 3.2 Terms related to particle properties and measurement
73 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
74 5.3 Test stages
75 6 Test requirements
6.1 General
6.2 Safety assessment
76 6.3 Sample preparation
6.4 Sample treatment
6.4.1 Dustiness generation methods
77 6.4.2 Dispersing methods for aerosol generation
6.4.3 Sample treatment execution and report
78 6.5 Measurement of aerosolized nano-objects
6.5.1 Selection of the measuring method
79 6.5.2 Transport and sampling parameters
80 6.5.3 Considerations before testing
6.5.4 Size and concentration measurement results
82 6.5.5 Particle size distribution and other characteristic measurement parameters
83 7 Requirements for test setups and protocols
8 Test report
85 Annex A (informative) Considerations for the selection of the sample treatment procedure
87 Annex B (informative) Dustiness reference test methods
90 Annex C (informative) Dynamic method
93 Annex D (informative) Dispersing methods
94 Annex E (informative) Selection of the nano-object measuring method
96 Annex F (informative) Dry dispersion intensity in measuring devices
97 Bibliography

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BSI PD CEN ISO/TS 12025:2021 - TC
$217.84