ASTM E2589-08a
(Terminology)Standard Terminology Relating to Nonsieving Methods of Powder Characterization
Standard Terminology Relating to Nonsieving Methods of Powder Characterization
SIGNIFICANCE AND USE
Interpretation and use of data generated by particle characterization methods is highly dependent on the definitions of terms describing that data. It is extremely important that those terms be defined in precisely the same way both when comparing data from different characterization techniques and even when correlating data from the same technique.
It is likewise important that users of particle characterization methods and the data generated therefrom understand the principles of the methods, so that differences and similarities in the data can be interpreted in relation to those principles. That understanding can help to avoid disagreements when data from different characterization methods are compared.
The definitions contained in this terminology will aid in the interpretation of particle characterization data with respect to the method(s) used to produce that data.
SCOPE
1.1 This terminology covers the definitions of terms used in the description and procedures of analysis of particulate materials not ordinarily analyzed using test sieves. The terms relate directly to the equipment used in analysis, the physical forms of the materials to be analyzed, and selected descriptive data reduction and analysis formats.
1.2 Committee E29 on Particle and Spray Characterization believes that it is essential to include terms and definitions explicit to the committee’s scope, regardless of whether the terms appear in existing ASTM standards. Terms that are in common usage and appear in common-language dictionaries are generally not included, unless they have specific meanings in the context of particle characterization different from the common-language definitions.
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Designation:E2589–08a
Standard Terminology Relating to
1
Nonsieving Methods of Powder Characterization
This standard is issued under the fixed designation E 2589; 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.
INTRODUCTION
Particle size distribution, surface area, and other forms of particle analysis have been commonly
adopted methods of verifying compliance with desired particle specifications for some time. Greater
emphasis is now being placed on inter- and intralaboratory correlation of all particle measurement
systems.
To ensure a better understanding of the comparison of testing results from particle measurement
systems, terminology relating to the measurements must be clearly defined and documented so that
both the recipient and generator of the data are in full agreement as to the meaning of the data. Every
effort has been made here to ensure accuracy, precision, and clarity for the terms included in this
terminology document. For Committee E29, this is an ongoing process with new terms being
developed and defined for future inclusion. Suggestions and comments for additions, corrections, and
revisions are welcomed.
1. Scope the principles of the methods, so that differences and similari-
ties in the data can be interpreted in relation to those principles.
1.1 This terminology covers the definitions of terms used in
That understanding can help to avoid disagreements when data
the description and procedures of analysis of particulate
from different characterization methods are compared.
materials not ordinarily analyzed using test sieves. The terms
2.3 The definitions contained in this terminology will aid in
relate directly to the equipment used in analysis, the physical
the interpretation of particle characterization data with respect
forms of the materials to be analyzed, and selected descriptive
to the method(s) used to produce that data.
data reduction and analysis formats.
1.2 Committee E29 on Particle and Spray Characterization
3. Terminology
believes that it is essential to include terms and definitions
explicit to the committee’s scope, regardless of whether the blind pore,n—open pore having only a single connection with
an external surface.
terms appear in existing ASTM standards. Terms that are in
common usage and appear in common-language dictionaries dispersion, n—system consisting of particles distributed in a
solid, liquid, or gas.
are generally not included, unless they have specific meanings
in the context of particle characterization different from the dynamic image analysis, n—particle size and shape analysis
using computer image analysis techniques on
common-language definitions.
instantaneously-capturedstill-frameprojectedimagesofpar-
2. Significance and Use
ticles in motion.
2.1 Interpretation and use of data generated by particle
DISCUSSION—Some instruments use a moving measurement appara-
characterization methods is highly dependent on the definitions
tus on static particles.
of terms describing that data. It is extremely important that
electrical sensing zone analysis, n—particle size analysis in
those terms be defined in precisely the same way both when
which particles suspended in a conductive liquid medium
comparing data from different characterization techniques and
pass through a narrow orifice in an insulating material
even when correlating data from the same technique.
separating two electrodes. Each traversing particle generates
2.2 It is likewise important that users of particle character-
an electrical signal proportional to its volume.
ization methods and the data generated therefrom understand
electrical sensing zone equivalent spherical diameter,
n—diameter of a hypothetical spherical particle that when
1
This terminology is under the jurisdiction ofASTM Committee E29 on Particle
suspended in a conducting fluid would yield the same
and Spray Characterization and is the direct responsibility of Subcommittee E29.02
electrical signal as the particle under analysis.
on Non-Sieving Methods.
emulsion, n—a system that consists of one liquid dispersed in
Current edition approved July 1, 2008. Published July 2008. Originally approved
in 2007. Last previous edition approved in 2008 as E 2589 – 08. another.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E2589–08a
equivalent spherical diameter, n—diameter of a sphere that primary particle, n—a discrete unit, itself bound together
has the same geometrical characteristics (projected area, only by strong
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E2589–08 Designation:E2589–08a
Standard Terminology Relating to
1
Nonsieving Methods of Powder Characterization
This standard is issued under the fixed designation E 2589; 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.
INTRODUCTION
Particle size distribution, surface area, and other forms of particle analysis have been commonly
adopted methods of verifying compliance with desired particle specifications for some time. Greater
emphasis is now being placed on inter- and intralaboratory correlation of all particle measurement
systems.
To ensure a better understanding of the comparison of testing results from particle measurement
systems, terminology relating to the measurements must be clearly defined and documented so that
both the recipient and generator of the data are in full agreement as to the meaning of the data. Every
effort has been made here to ensure accuracy, precision, and clarity for the terms included in this
terminology document. For Committee E29, this is an ongoing process with new terms being
developed and defined for future inclusion. Suggestions and comments for additions, corrections, and
revisions are welcomed.
1. Scope
1.1 This terminology covers the definitions of terms used in the description and procedures of analysis of particulate materials
not ordinarily analyzed using test sieves. The terms relate directly to the equipment used in analysis, the physical forms of the
materials to be analyzed, and selected descriptive data reduction and analysis formats.
1.2 Committee E29 on Particle and Spray Characterization believes that it is essential to include terms and definitions explicit
to the committee’s scope, regardless of whether the terms appear in existing ASTM standards. Terms that are in common usage
and appear in common-language dictionaries are generally not included, unless they have specific meanings in the context of
particle characterization different from the common-language definitions.
2. Significance and Use
2.1 Interpretation and use of data generated by particle characterization methods is highly dependent on the definitions of terms
describing that data. It is extremely important that those terms be defined in precisely the same way both when comparing data
from different characterization techniques and even when correlating data from the same technique.
2.2 It is likewise important that users of particle characterization methods and the data generated therefrom understand the
principles of the methods, so that differences and similarities in the data can be interpreted in relation to those principles. That
understanding can help to avoid disagreements when data from different characterization methods are compared.
2.3 The definitions contained in this terminology will aid in the interpretation of particle characterization data with respect to
the method(s) used to produce that data.
3. Terminology
blind pore, n—open pore having only a single connection with an external surface.
dispersion, n—system consisting of particles distributed in a solid, liquid, or gas.
dynamic image analysis, n—particle size and shape analysis using computer image analysis techniques on instantaneously-
captured still-frame projected images of particles in motion.
DISCUSSION—Some instruments use a moving measurement apparatus on static particles.
electrical sensing zone analysis, n— particle size analysis in which particles suspended in a conductive liquid medium pass
1
This terminology is under the jurisdiction of ASTM Committee E29 on Particle and Spray Characterization and is the direct responsibility of Subcommittee E29.02 on
Non-Sieving Methods.
Current edition approved May 15, 2008. Published June 2008.
Current edition approved July 1, 2008. Published July 2008. Originally approved in 2007. Last previous edition approved in 2008 as E 2589 – 08.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E2589–08a
through a narrow orifice in an insulating material separating two electrodes. Each traversing particle generates an electrical
signal proportional to its volume.
electrical sensing zone equivalent spherical diameter, n—diameter of a hypothetical spherical particle that when sus
...
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