ASTM D2862-16(2022)
(Test Method)Standard Test Method for Particle Size Distribution of Granular Activated Carbon
Standard Test Method for Particle Size Distribution of Granular Activated Carbon
SIGNIFICANCE AND USE
4.1 It is necessary to know the distribution of particle sizes of granular activated carbon in order to provide proper contact of gases or liquid in a packed bed of the material. Changes in particle size distribution can affect the pressure drop across the bed and the rate of adsorption in a bed of a given size.
4.2 Mean particle diameter is a property of activated carbons that influences pressure drop.
4.3 Effective size and uniformity coefficient are two properties of activated carbons often of interest in municipal water treatment applications where control of particle size is of interest.
SCOPE
1.1 This test method covers the determination of the particle size distribution of granular activated carbon. For the purposes of this test, granular activated carbon is defined as a minimum of 90 % of the sample weight being retained on a 180 μm Standard sieve. A U.S. mesh 80 sieve is equivalent to a 180 μm Standard sieve.
Note 1: For extruded carbons, as the length/diameter ratio of the particles increases, the validity of the test results might be affected.
1.2 The data obtained may also be used to calculate mean particle diameter (MPD), effective size, and uniformity coefficient.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3.1 Exception—All mass measurements are in SI units only.
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
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: D2862 − 16 (Reapproved 2022)
Standard Test Method for
1
Particle Size Distribution of Granular Activated Carbon
This standard is issued under the fixed designation D2862; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope D2854 Test Method for Apparent Density of Activated
Carbon
1.1 This test method covers the determination of the particle
E11 Specification for Woven Wire Test Sieve Cloth and Test
size distribution of granular activated carbon. For the purposes
Sieves
of this test, granular activated carbon is defined as a minimum
E177 Practice for Use of the Terms Precision and Bias in
of 90 % of the sample weight being retained on a 180 µm
ASTM Test Methods
Standard sieve.AU.S. mesh 80 sieve is equivalent to a 180 µm
E300 Practice for Sampling Industrial Chemicals
Standard sieve.
E691 Practice for Conducting an Interlaboratory Study to
NOTE 1—For extruded carbons, as the length/diameter ratio of the
Determine the Precision of a Test Method
particles increases, the validity of the test results might be affected.
1.2 The data obtained may also be used to calculate mean
3. Summary of Test Method
particle diameter (MPD), effective size, and uniformity coef-
3.1 A known weight of granular activated carbon is placed
ficient.
on the top sieve of a stacked set of U.S. Standard sieves and
1.3 The values stated in inch-pound units are to be regarded
shaken under standard conditions for a specific time period,
as standard. The values given in parentheses are mathematical
after which the weight percent of the total retained on each
conversions to SI units that are provided for information only
sieve and bottom pan is determined.
and are not considered standard.
4. Significance and Use
1.3.1 Exception—All mass measurements are in SI units
only.
4.1 It is necessary to know the distribution of particle sizes
1.4 This standard does not purport to address all of the
of granular activated carbon in order to provide proper contact
safety concerns, if any, associated with its use. It is the of gases or liquid in a packed bed of the material. Changes in
responsibility of the user of this standard to establish appro-
particle size distribution can affect the pressure drop across the
priate safety, health, and environmental practices and deter-
bed and the rate of adsorption in a bed of a given size.
mine the applicability of regulatory limitations prior to use.
4.2 Mean particle diameter is a property of activated car-
1.5 This international standard was developed in accor-
bons that influences pressure drop.
dance with internationally recognized principles on standard-
4.3 Effective size and uniformity coefficient are two prop-
ization established in the Decision on Principles for the
erties of activated carbons often of interest in municipal water
Development of International Standards, Guides and Recom-
treatment applications where control of particle size is of
mendations issued by the World Trade Organization Technical
interest.
Barriers to Trade (TBT) Committee.
2. Referenced Documents 5. Apparatus
2
3
2.1 ASTM Standards:
5.1 Mechanical Sieve Shaker —This is a mechanically op-
D2652 Terminology Relating to Activated Carbon
erated sieve shaker that imparts a uniform rotating and tapping
motion to a stack of 8 in. (203 mm or equivalent) sieves as
1
This test method is under the jurisdiction of ASTM Committee D28 on
described in 5.2. The sieve shaker should be adjusted to
Activated Carbon and is the direct responsibility of Subcommittee D28.04 on Gas
accommodate the desired number of sieves, receiver pan, and
Phase Evaluation Tests.
sieve cover. The bottom stops should be adjusted to give a
Current edition approved Sept. 1, 2022. Published October 2022. Originally
approved in 1970. Last previous edition approved in 2016 as D2862 – 16. DOI:
10.1520/D2862-16R22.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or TheTyler Ro-Tap Model RX-19-1 has been used in developing this test. Newer
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM models may not produce the same separations (Model RX-19-2 is equivalent to
Standards volume information, refer to the standard’s Document Summary page on Model RX-19-1). This model is available from Fisher Scientific, Pittsburgh, PA
the ASTM website. 15238.
Copyright © ASTM Internatio
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