ASTM D2854-96(2000)
(Test Method)Standard Test Method for Apparent Density of Activated Carbon
Standard Test Method for Apparent Density of Activated Carbon
SCOPE
1.1 This test method covers the determination of the apparent density of granular activated carbon. For purposes of this test method, granular activated carbon is defined as a minimum of 90% being larger than 80 mesh.
1.2 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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Designation: D 2854 – 96 (Reapproved 2000)
Standard Test Method for
Apparent Density of Activated Carbon
This standard is issued under the fixed designation D 2854; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope vessels to hold the material and for ordering purposes when
procuring materials to fill existing vessels.
1.1 This test method covers the determination of the appar-
ent density of granular activated carbon. For purposes of this
5. Apparatus (see Fig. 1)
test method, granular activated carbon is defined as a minimum
5.1 Reservoir Funnel, fabricated of glass or metal.
of 90 % being larger than 80 mesh.
5.2 Feed Funnel, glass or metal.
1.2 This standard does not purport to address all of the
5.3 Vibratory Feeder, such as shown in Fig. 1 or similar.
safety concerns, if any, associated with its use. It is the
5.4 Cylinders, graduated 100, 250, or 500 mL, calibrated “to
responsibility of the user of this standard to establish appro-
contain” (TC).
priate safety and health practices and determine the applica-
5.5 Balance, having a sensitivity of 0.1 g.
bility of regulatory limitations prior to use.
6. Procedure
2. Referenced Documents
6.1 Select a 100, 250, or 500 mL graduated cylinder
2.1 ASTM Standards:
appropriate for the particle size of the activated carbon to be
D 2862 Test Method for Particle Size Distribution of
tested. The inside diameter of the cylinder shall be at least 10
Granular Activated Carbon
2 times the mean particle diameter (MPD) as determined by Test
D 2867 Test Method for Moisture in Activated Carbon
Method D 2862.
E 177 Practice for Use of the Terms Precision and Bias in
3 6.2 If desired, the graduated cylinder may be calibrated by
ASTM Test Methods
the user in accordance with Practice E 542.
E 300 Practice for Sampling Industrial Chemicals
6.3 Obtain a representative sample of activated carbon in
E 542 Practice for Calibration of Laboratory Volumetric
3 accordance with Practice E 300. Carefully place the sample of
Apparatus
activated carbon into the reservoir funnel so that the material
3. Summary of Test Method does not prematurely flow into the graduated cylinder. If this
occurs, return the material to the reservoir funnel.
3.1 Apparent density (bulk density) is determined on a
6.4 The feed funnel should have an outside diameter which
granular sample by measuring the volume packed by a free fall
just fits inside the chosen graduated cylinder. Adjust the height
from a vibrating feeder into an appropriately sized graduated
of the reservoir funnel above the vibrator trough so that a free
cylinder and determining the mass of the known volume. Other
flow of material is obtained. The drawing in Fig. 1 shows a
packing procedures can result in different apparent densities.
typical apparatus using a 100 mL TC graduated cylinder.
4. Significance and Use
6.5 Add the sample to the cylinder using the vibratory
feeder through the feed funnel. Adjust the flow rate control to
4.1 This test method provides a method for determining the
fill the cylinder at a uniform rate not less than 0.75 or
packed density of a bed of granular activated carbon. Deter-
exceeding 1.0 mL/s up to the mark corresponding to the
mination of the packed density is essential when designing
volume chosen. The graduated cylinder shall be filled to at least
50 % of its capacity.
6.6 Transfer the contents from the cylinder to a balance pan
This test method is under the jurisdiction of ASTM Committee D-28 on
Activated Carbon and is the direct responsibility of Subcommittee D28.04 on Gas and weigh to the nearest 0.1 g.
Phase Evaluation Tests.
Current edition approved April 10
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