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BS EN ISO 21363:2022 – TC

BS EN ISO 21363:2022 – TC

$280.87

Tracked Changes. Nanotechnologies. Measurements of particle size and shape distributions by transmission electron microscopy

Published By Publication Date Number of Pages
BSI 2022 216
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PDF Catalog

PDF Pages PDF Title
1 30458624
123 A-30440295
124 undefined
127 European foreword
Endorsement notice
131 Foreword
132 Introduction
133 1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Core terms — Particles
136 3.2 Core terms — Image capture and analysis
137 3.3 Core terms — Statistical symbols and definitions
139 3.4 Core terms — Measurands
142 3.5 Core terms — Metrology
145 3.6 Core terms — Transmission electron microscopy
146 3.7 Statistical symbols, measurands and descriptors
3.7.1 Statistical symbols
3.7.2 Measurands and descriptors
147 4 Stakeholder needs for TEM measurement procedures
148 5 Sample preparation
5.1 General
149 5.2 Sample sources
5.3 Use a representative sample
5.3.1 General
5.3.2 Powder samples
5.3.3 Nanoparticle dispersions in liquids
150 5.4 Minimize particle agglomeration in the sample dispersion
5.5 Selection of the mounting support
6 Instrument factors
6.1 Instrument set-up
151 6.2 Calibration
6.2.1 General
6.2.2 Calibration standards
6.2.3 General calibration procedure
153 6.3 Setting TEM operating conditions for calibration
154 7 Image capture
7.1 General
7.2 Setting a suitable operating magnification
155 7.3 Minimum particle area
7.4 Number of particles to count for particle size and shape distributions
156 7.5 Uniform background
7.6 Measurement procedure
7.6.1 General
157 7.6.2 Developing a test sample
7.6.3 Effects of magnification
7.6.4 Frames (micrographs)
7.7 Revision of image capture protocols
8 Particle analysis
8.1 General
8.2 Individual particle analysis
158 8.3 Automated particle analysis
8.4 Example — Automated particle analysis procedure
159 9 Data analysis
9.1 General
9.2 Raw data triage — Detecting touching particles, unselected particles, artefacts and contaminants
160 9.3 Data quality assessment — Repeatability, intermediate precision and reproducibility
162 9.4 Fitting distributions to data
163 9.5 ​Assessing measurement uncertainty for samples under repeatability, intermediate precision or reproducibility conditions
9.5.1 Grand statistics for fitted parameters — Three or more datasets
9.5.2 Measurement uncertainty of fitted parameters
164 9.5.3 Example — Measurement uncertainty for a size descriptor
9.6 Bivariate analysis
165 10 Reporting
168 Annex A (informative) Case studies overview
170 Annex B (informative) Discrete spheroidal nanoparticles
173 Annex C (informative) Size mixture
185 Annex D (informative) Shape mixture
190 Annex E (informative) Amorphous aggregates
194 Annex F (informative) Nanocrystalline aggregates
198 Annex G (informative) Nanofibres with irregular cross-sections
205 Annex H (informative) Nanoparticles with specific crystal habits
212 Bibliography

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BS EN ISO 21363:2022 - TC
$280.87