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ASTM D5832-98(2003)

(Test Method)

Standard Test Method for Volatile Matter Content of Activated Carbon Samples

Standard Test Method for Volatile Matter Content of Activated Carbon Samples

SIGNIFICANCE AND USE
Volatile matter, when determined as herein described, may be used as a relative measure of the extent of carbonization in an activated carbon and the extent of loading of volatile material on an activated carbon that has been used in an adsorption application.  
Combined with other information, the volatile matter of an activated carbon may be useful in evaluating its performance in an adsorption application.  
Other automated methods for the determination of the volatile content of solids, such as using a thermogravimetric analyzer (TGA), can be used in place of this test method with equally reliable results.
SCOPE
1.1 This test method covers the determination of the percentage of gaseous products, exclusive of moisture vapor, present in virgin and used activated carbons which are released under specific conditions of the test.
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.

General Information

Status
Historical
Publication Date
09-Mar-2003
ICS
71.060.10 - Chemical elements
Technical Committee
D28 - Activated Carbon
Drafting Committee
D28.04 - Gas Phase Evaluation Tests
Current Stage
Ref Project

Relations

Replaces
ASTM D5832-98 - Standard Test Method for Volatile Matter Content of Activated Carbon Samples
Effective Date
10-Mar-2003
Replaced By
ASTM D5832-98(2008) - Standard Test Method for Volatile Matter Content of Activated Carbon Samples
Effective Date
01-Aug-2008

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ASTM D5832-98(2003) - Standard Test Method for Volatile Matter Content of Activated Carbon SamplesASTM D5832-98(2003) - Standard Test Method for Volatile Matter Content of Activated Carbon Samples
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ASTM D5832-98(2003) - Standard Test Method for Volatile Matter Content of Activated Carbon Samples
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D 5832–98 (Reapproved 2003)
Standard Test Method for
Volatile Matter Content of Activated Carbon Samples
This standard is issued under the fixed designation D 5832; 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.
1. Scope 5.2 Combined with other information, the volatile matter of
an activated carbon may be useful in evaluating its perfor-
1.1 This test method covers the determination of the per-
mance in an adsorption application.
centage of gaseous products, exclusive of moisture vapor,
5.3 Other automated methods for the determination of the
present in virgin and used activated carbons which are released
volatile content of solids, such as using a thermogravimetric
under specific conditions of the test.
analyzer (TGA), can be used in place of this test method with
1.2 This standard does not purport to address all of the
equally reliable results.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Apparatus
priate safety and health practices and determine the applica-
6.1 Crucible and Cover, high temperature porcelain, high
bility of regulatory limitations prior to use.
form, 30 cc capacity.
2. Referenced Documents 6.2 Oven, forced-air circulation, capable of temperature
regulation up to 250°C.
2.1 ASTM Standards:
6.3 Moisture Determination Apparatus, as described in Test
D 2652 Terminology Relating to Activated Carbon
Method D 2867.
D 2867 Test Method for Moisture in Activated Carbon
6.4 Muffle Furnace, gravity circulation, capable of tempera-
D 3175 Test Method for Volatile Matter in the Analysis
ture regulation at 950 6 25°C. An electric furnace similar to
Sample of Coal and Coke
the one described in Test Method D 3175 is suitable for use in
3. Terminology this test method.
6.5 Desiccator, glass with indicating type desiccant.
3.1 Definitions—For definitions of terms used in this test
6.6 Balance, analytical, capable of 0.1 mg sensitivity.
method relating to activated carbon, refer to Terminology
D 2652.
7. Hazards
4. Summary of Test Method
7.1 Thefurnaceusedinthistestmethodshouldbelocatedin
a well ventilated area to eliminate exposure to possible toxic
4.1 Volatile matter is determined by establishing the loss in
vaporsthatmayevolvefromthecarbonsampleduringthehigh
mass resulting from heating an activated carbon sample under
temperature heating.
rigidly controlled conditions. The measured mass loss, cor-
7.2 Exercise care when working with the high temperature
rected for moisture as determined in Test Method D 2867,
furnace to eliminate the possibility of burns.
establishes the volatile matter content of the activated carbon
sample.
8. Procedure
5. Significance and Use 8.1 Determine the moisture content of an as-received rep-
resentative portion of the sample using the Xylene-Extraction
5.1 Volatile matter, when determined as herein described,
Test Method described in D 2867. If the as-received sample is
may be used as a relative measure of the extent of carboniza-
wet, drain it of all free liquid before the representative sample
tion in an activated carbon and the extent of loading of volatile
is taken.
material on an activated carbon that has been used in an
8.2 Weighto0.1mgaccuracyacrucibleandcoverthathave
adsorption application.
been ignited in a muffle furnace regulated at 950°C for 30 min
and cooled in a desiccator. Record the weight.
This test method is under the jurisdiction of ASTM Committee D28 on
8.3 Using a spoon or spatula, dip from the sample bottle
Activated Carbon and is the direct responsibility of Subcommittee D28.04 on Gas
approxim
...

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2.1 This terminology ensures that terms peculiar to activated carbon are adequately defined so that other standards in which such terms are used can be understood and interpreted properly.  
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1.2 This standard does not purport to address any environmental regulatory concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate practices for reactivation prior to use.  
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SIGNIFICANCE AND USE
5.1 Volatile matter, when determined as herein described, may be used as a relative measure of the extent of carbonization in an activated carbon and the extent of loading of volatile material on an activated carbon that has been used in an adsorption application.  
5.2 Combined with other information, the volatile matter of an activated carbon may be useful in evaluating its performance in an adsorption application.  
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5.1 This practice is used when activated carbon is considered as an adsorbent in treating water. Since both granular and powdered activated carbons are commercially available, a standard practice is needed to ensure that the activated carbons are evaluated under the same test conditions. Specified particle size carbon is to be used to ensure that the same test conditions are used. The practice is generally performed at 20 °C; however, other temperatures may be used and noted.
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4.1 This test method is applicable only for determination of the volatile moisture content resulting from adsorption of water vapor from the atmosphere, and is not intended to give representative moisture data for graphite that has been exposed to liquid water contamination.
SCOPE
1.1 This test method provides a practical determination for the percentage of moisture in a graphite sample.  
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