ASTM D8392-22

Standard Practice for Calibration and Verification of Direct Imaging Analyzers Used for Particle Size and Shape Analysis of Catalytic Materials

SIGNIFICANCE AND USE
5.1 Particle size and shape are important in predicting the performance of catalytic materials. They influence the bulk density of the final product and thereby the effectiveness of performance.  
5.2 Establishing a verification reference for the analyzer that is commercially available and dimensionally reliable to close tolerances enables different analyzers to be easily checked to equivalent standards.  
5.3 This practice may also be followed to analyze catalytic materials for quality manufacturing purposes. Sections 9 and 10 instruct on sample count determination as well as sampling recommendations. Test Method D6299 may be utilized to monitor performance of the analyzer in measuring the size and shape of catalytic materials.
SCOPE
1.1 This practice covers the calibration and verification of Dynamic Imaging Analyzers (analyzers) using catalytic and non-catalytic reference materials. The measurement range of analyzers covers from 500 µm to 20 000 µm.  
1.2 This practice may also be used to analyze catalytic materials once the analyzer has been calibrated and verified.  
1.3 Units—The values stated in SI units are to be regarded as standard; however, English and mesh units are also acceptable with conversions provided in Appendix X3.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Jul-2022
• ICS: 19.120 - Particle size analysis. Sieving
• Technical Committee: D32 - Catalysts
• Drafting Committee: D32.02 - Physical-Mechanical Properties

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8392 −22
Standard Practice for
Calibration and Verification of Direct Imaging Analyzers
Used for Particle Size and Shape Analysis of Catalytic
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Materials
This standard is issued under the fixed designation D8392; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
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1. Scope 2.2 DIN Standard:
66141 Representation of Particle Size Distributions – Basic
1.1 This practice covers the calibration and verification of
Standard
Dynamic Imaging Analyzers (analyzers) using catalytic and
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2.3 ISO Standards:
non-catalytic reference materials. The measurement range of
9276-6 Representation of Results of Particle SizeAnalysis –
analyzers covers from 500 µm to 20 000 µm.
Part 6: Descriptive and Quantitative Representation of
1.2 This practice may also be used to analyze catalytic
Particle Shape and Morphology
materials once the analyzer has been calibrated and verified.
13322-1 Particle SizeAnalysis – ImageAnalysis Methods –
1.3 Units—The values stated in SI units are to be regarded Part 1: Static Image Analysis Methods
as standard; however, English and mesh units are also accept-
3. Terminology
able with conversions provided in Appendix X3.
3.1 ReferenceTerminologiesD3766andE2589forstandard
1.4 This standard does not purport to address all of the
definitions.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.2 Non-standard Particle Shape Definitions and Defini-
priate safety, health, and environmental practices and deter-
tions of Terms Specific to This Standard
mine the applicability of regulatory limitations prior to use. 3.2.1 aspect ratio, n—equal to the particle width divided by
1.5 This international standard was developed in accor- the particle length (see Appendix X1).
dance with internationally recognized principles on standard-
3.2.2 particle convexity, n—a measurement, from 0 to 1, of
ization established in the Decision on Principles for the
the actual particle area to the area within the convex perimeter
Development of International Standards, Guides and Recom-
(see X1.4).
mendations issued by the World Trade Organization Technical
3.3 Non-standard Particle Size Definitions and Definitions
Barriers to Trade (TBT) Committee.
of Terms Specific to This Standard
3.3.1 particle length, n—the maximum feret that is perpen-
2. Referenced Documents
dicular to the particle width of the two-dimensionally imaged
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2.1 ASTM Standards:
particle (see Appendix X1).
D3766 Terminology Relating to Catalysts and Catalysis
3.3.2 particle width, n—the minimum area bisector of the
D6299 Practice for Applying Statistical Quality Assurance
two-dimensionally imaged particle and signified by X ,
Ma min
and Control Charting Techniques to Evaluate Analytical
minimum Martin diameter (see Appendix X1).
Measurement System Performance
E105 Guide for Probability Sampling of Materials
NOTE 1—Imaging terminology is known to have multiple phrasings
E2589 Terminology Relating to Nonsieving Methods of throughout industry. Appendix X1 and Appendix X2 describe, in detail,
what these terms represent with regard to this practice.
Powder Characterization
4. Summary of Practice
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4.1 The general principle of operation of the analyzer is the
This practice is under the jurisdiction of ASTM Committee D32 on Catalysts
and is the direct responsibility of Subcommittee D32.02 on Physical-Mechanical
transport of catalytic material from a loading container through
Properties.
Current edition approved Aug. 1, 2022. Published September 2022. DOI:
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10.1520/D8392-22. Available from Deutsches Institut für Normung e.V.(DIN), Am DIN-Platz,
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Burggrafenstrasse 6, 10787 Berlin, Germany, http://www.din.de.
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contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from International Organization for Standardization (ISO), ISO
Standards volume information, refer to the standard’s Document Summary page on Central Secretariat, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,
the ASTM website. Switzerland, https://www.iso.org.
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D8392 − 22
a measurement zone where the particles can be dynamically 6.1.1.2 Illumination Source—Asource that provides consis-
imaged in
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