ASTM E1534-93(1998)
(Test Method)Standard Test Method for Determination of ASH Content of Particulate Wood Fuels
Standard Test Method for Determination of ASH Content of Particulate Wood Fuels
SCOPE
1.1 This test method covers the determination of ash expressed as the percent of residue remaining after dry oxidation of particulate wood fuels. Particulate wood fuels are defined in Terminology E1126.
1.2 The values stated in SI units shall be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety problems, 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:E1534–93 (Reapproved 1998)
Standard Test Method for
Determination of ASH Content of Particulate Wood Fuels
This standard is issued under the fixed designation E 1534; 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. Significance and Use
1.1 This test method covers the determination of ash ex- 5.1 The ash content determines the weight of the noncom-
pressed as the percent of residue remaining after dry oxidation bustible part of a particulate wood fuel that oxidizes during a
of particulate wood fuels. Particulate wood fuels are defined in combustion process but releases no energy.
Terminology E 1126.
6. Apparatus
1.2 The values stated in SI units shall be regarded as the
6.1 Crucibles, having a capacity of 30 mLor more. Silica or
standard. The values given in parentheses are for information
only. porcelain materials are acceptable.
6.2 Muffle Furnace—An electric furnace is recommended
1.3 This standard does not purport to address all of the
safety problems, if any, associated with its use. It is the for igniting the wood sample. A furnace fitted with an indicat-
ing pyrometer, so that the desired temperature can be main-
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- tained, is preferable.
6.3 Analytical Balance, sensitive to 0.1 mg.
bility of regulatory limitations prior to use.
2. Referenced Documents 7. Procedure
7.1 Obtain a 2-g sample of the wood to be tested using the
2.1 ASTM Standards:
D 3180 Practice for Calculating Coal and Coke Analyses techniques outlined in Method E 871.
7.2 Ignite the empty crucible over a burner, and cool it in a
from As-Determined to Different Bases
E 871 Method for Moisture Analysis of Particulate Wood desiccator.
7.3 Determine the weight of the crucible to the nearest 0.1
Fuels
E 1126 Terminology Relating to Biomass Fuels mg.
7.4 Place the 2-g sample of the wood in the crucible, and
3. Terminology
determine the weight of the sample and crucible.
3.1 For additional information, see Terminology E 1126. 7.5 Place the sample in a cold muffle furnace. Turn on the
muffle furnace, and slowly heat the furnace to a temperature of
4. Summary of Test Method
580 to 600°C. Avoid heating above this maximum.
4.1 Ash content is determined by establishing the weight 7.6 Remove the ash and crucible to a desiccator, cool, and
loss of the sample when heated under rigidly controlled
weigh to the nearest 0.1 mg. Repeat the heating for 30 min
conditions of temperature, time, sample weight, and equipment perio
...
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