Standard Practice for Reporting Particle Size Characterization Data

SIGNIFICANCE AND USE
When evaluating the particle size information, if the procedures of the data processing are not available, the user of the data must make assumptions concerning the reported data in the event of analytical inconsistencies. In order for different data sets to be compared it is crucial that the parties report the analytical techniques and methods or procedures for evaluating, calculating, compiling or otherwise processing the data to be reported.
Particle size characterization information can be reported in three levels of detail in order to satisfy user’needs.
3.2.1 Level 1 applies when only basic information about the material is required, and shall be provided with each shipment. This level represents the minimum information that shall be reported. Level 1 information may be sufficient in such cases as identifying a certain grade of a material or when detailed knowledge of analytical methodology is not needed.
3.2.2 Level 2 presumes the need for knowledge of methodology on the user’part and allows the user to make a more informed judgment about the information provided in Level 1.
3.2.3 Level 3 provides detailed written procedures to allow duplication of the measurement.
3.2.4 Information provided through Levels 2 and 3 will allow users to perform comparative material evaluations between several suppliers, set specifications or define a purchase agreement, perform inter-laboratory studies and most importantly resolve disputes between supplier and users.
Reported particle size measurement is a function of both the actual particle dimension and shape factor as well as the particular physical or chemical properties of the particle being measured. Caution is required when comparing data from instruments operating on different physical or chemical parameters or with different particle size measurement ranges. Sample acquisition, handling and preparation can also affect the reported particle size results.
SCOPE
1.1 This practice covers reporting particle size measurement data.
1.2 This practice applies to particle size measurement methods, devices, detail levels, and data formats for dry powders, and wet suspensions of solids, gels, or emulsion droplets. This practice does not pertain to liquid particles.
Note 1—For information on reporting liquid particle measurement data, refer to Practice E 799.
1.3 This practice does not concern particle concentration information.
1.4 This practice uses SI (Systme International) units as standard. State all numerical values in terms of SI units unless specific instrumentation software reports particle size information, including percentiles, indices, and distributions as tabulations and graphs using alternate units. In this case, present both reported and equivalent SI units in the final written report. Refer to Practice E 380 for proper usage of SI units.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E1617–97 (Reapproved 2007)
Standard Practice for
Reporting Particle Size Characterization Data
This standard is issued under the fixed designation E 1617; 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 (e) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Correlation and comparison of particle size measurement data are of general importance to
researchers, processors, suppliers, vendors, and users of particulate materials. Since there are
numerous methods and devices in use, comparisons of size measurement data are subject to perceived
inconsistencies that may be much reduced by the use of standardized reporting.
Data generated by any one size measurement method may be consistent in many respects, yet be
troublesome to correlate due to variances in data processing and reporting formats among equipment
manufacturers. Data generated from methods employing different physical principles present serious
correlation problems due to their sensing of different parameters related to particle size and some
unrelated, such as density, shape and optical properties. Standardized reporting may reduce confusion
resulting from different particle size measurement practices.
1. Scope 2. Referenced Documents
1.1 Thispracticecoversreportingparticlesizemeasurement 2.1 ASTM Standards:
data. E 177 Practice for Use of the Terms Precision and Bias in
1.2 This practice applies to particle size measurement meth- ASTM Test Methods
ods, devices, detail levels, and data formats for dry powders, E 380 Practice for Use of the International System of Units
and wet suspensions of solids, gels, or emulsion droplets. This (SI)
practice does not pertain to liquid particles. E 456 Terminology Relating to Quality and Statistics
E 691 Practice for Conducting an Interlaboratory Study to
NOTE 1—For information on reporting liquid particle measurement
Determine the Precision of a Test Method
data, refer to Practice E 799.
E 799 Practice for Determining Data Criteria and Process-
1.3 This practice does not concern particle concentration
ing for Liquid Drop Size Analysis
information.
1.4 This practice uses SI (Système International) units as
3. Significance and Use
standard. State all numerical values in terms of SI units unless
3.1 When evaluating the particle size information, if the
specific instrumentation software reports particle size informa-
procedures of the data processing are not available, the user of
tion, including percentiles, indices, and distributions as tabu-
the data must make assumptions concerning the reported data
lations and graphs using alternate units. In this case, present
in the event of analytical inconsistencies. In order for different
both reported and equivalent SI units in the final written report.
data sets to be compared it is crucial that the parties report the
Refer to Practice E 380 for proper usage of SI units.
analytical techniques and methods or procedures for evaluat-
1.5 This standard does not purport to address all of the
ing, calculating, compiling or otherwise processing the data to
safety concerns, if any, associated with its use. It is the
be reported.
responsibility of the user of this standard to establish appro-
3.2 Particle size characterization information can be re-
priate safety and health practices and determine the applica-
ported in three levels of detail in order to satisfy user’s needs.
bility of regulatory limitations prior to use.
1 2
This practice is under the jurisdiction ofASTM Committee E29 on Particle and For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Spray Characterization and is the direct responsibility of Subcommittee E29.02 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Non-Sieving Methods. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2007. Published May 2007. Originally the ASTM website.
approved in 1994. Last previous edition approved in 2002 as E 1617 – 97(2002). Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E1617–97 (2007)
3.2.1 Level 1 applies when only basic information about the 4.4.5 The report shall include the bases for the reported
material is required, and shall be provided with each shipment. parameters. Examples of parameter basis are frequently distri-
This level represents the minimum information that shall be bution, scattering area distribution, and mass distribution.
reported.Level1informationmaybesufficientinsuchcasesas 4.4.6 The report shall include the range of size measure-
identifying a certain grade of a material or when detailed ment, in appropriate SI units.
knowledge of analytical methodology is not needed. 4.5 Particle Size Characterization Data Sheet—Level 2:
4.5.1 The Level 2 report shall include all information listed
3.2.2 Level 2 presumes the need for knowledge of method-
under 4.4.
ology on the user’s part and allows the user to make a more
4.5.2 The report shall include the manufacturer’s identifica-
informed judgment about the information provided in Level 1.
tion of the instrument or apparatus used to perform the particle
3.2.3 Level 3 provides detailed written procedures to allow
size measurement.
duplication of the measurement.
4.5.3 The report shall include all of the parameters required
3.2.4 Information provided through Levels 2 and 3 will
to use the instrument or apparatus.
allow users to perform comparative material evaluations be-
4.5.4 The report shall include the software version num-
tween several suppliers, set specifications or define a purchase
ber(s) of any computerized instrument used to measure particle
agreement, perform inter-laboratory studies and most impor-
size.
tantly resolve disputes between supplier and users.
4.5.5 The report shall include a description of the basis of
3.3 Reported particle size measurement is a function of both
calculations performed by the instrument, to the extent avail-
the actual particle dimension and shape factor as well as the
able from the instrument manufacturer. Also, the report shall
particular physical or chemical properties of the particle being
include description of any additional calculations performed
measured. Caution is required when comparing data from
outside of the instrument software package.
instruments operating on different physical or chemical param-
4.5.6 The report shall include basic statistical information,
eters or with different particle size measurem
...

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