ASTM E1534-93(2006)

Standard Test Method for Determination of Ash Content of Particulate Wood Fuels

SIGNIFICANCE AND USE
The ash content determines the weight of the noncombustible part of a particulate wood fuel that oxidizes during a combustion process but releases no energy.
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 E 1126.
1.2 The values stated in SI units shall be regarded as the standard. The values given in parentheses are for information only.
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: 31-Oct-2006
• ICS: 75.160.10 - Solid fuels
• Technical Committee: E48 - Bioenergy and Industrial Chemicals from Biomass
• Drafting Committee: E48.05 - Biomass Conversion

Relations

• Replaces: ASTM E1534-93(1998) - Standard Test Method for Determination of ASH Content of Particulate Wood Fuels
• Effective Date: 01-Nov-2006
• Replaced By: ASTM E1534-93(2013) - Standard Test Method for Determination of Ash Content of Particulate Wood Fuels
• Effective Date: 15-Aug-2013
• Referred By: ASTM E1755-01(2020) - Standard Test Method for Ash in Biomass
• Effective Date: 01-Nov-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E1534 − 93(Reapproved 2006)
Standard Test Method for
Determination of Ash Content of Particulate Wood Fuels
This standard is issued under the fixed designation E1534; 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.
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 E1126.
6. Apparatus
1.2 The values stated in SI units shall be regarded as the
standard. The values given in parentheses are for information
6.1 Crucibles, having a capacity of 30 mLor more. Silica or
only.
porcelain materials are acceptable.
1.3 This standard does not purport to address all of the
6.2 Muffle Furnace—An electric furnace is recommended
safety concerns, if any, associated with its use. It is the
for igniting the wood sample. A furnace fitted with an indicat-
responsibility of the user of this standard to establish appro-
ing pyrometer, so that the desired temperature can be
priate safety and health practices and determine the applica-
maintained, is preferable.
bility of regulatory limitations prior to use.
6.3 Analytical Balance, sensitive to 0.1 mg.
2. Referenced Documents
7. Procedure
2.1 ASTM Standards:
7.1 Obtain a 2-g sample of the wood to be tested using the
D3180 Practice for Calculating Coal and Coke Analyses
techniques outlined in Method E871.
from As-Determined to Different Bases
E871 Test Method for Moisture Analysis of Particulate
7.2 Ignite the empty crucible over a burner, and cool it in a
Wood Fuels
desiccator.
E1126 Terminology Relating to Biomass Fuels (Withdrawn
7.3 Determine the weight of the crucible to the nearest 0.1
2003)
mg.
3. Terminology
7.4 Place the 2-g sample of the wood in the crucible, and
determine the weight of the sample and crucible.
3.1 For additional information, see Terminology E1126.
7.5 Place the sample in a cold muffle furnace. Turn on the
4. Summary of Test Method
muffle furnace, and slowly heat the furnace to a temperature of
580 to 600°C. Avoid heating above this maximum.
4.1 Ash content is determined by establishing the weight
loss of the sample when heated under rigidly controlled
7.6 Remove the ash and crucible to a desiccator, cool, and
conditions of temperature, time, sample weight, and equipment
weigh to the nearest 0.1 mg. Repeat the heating for 30 min
specifications.
periods until the weight of the ash and crucible after cooling is
constant to within 0.2 mg.
This test method is under the jurisdiction of ASTM Committee
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