ASTM E1534-93(2019)
(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
SIGNIFICANCE AND USE
5.1 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 E1126.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
1.4 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
- Status
- Published
- Publication Date
- 31-Mar-2019
- Technical Committee
- E48 - Bioenergy and Industrial Chemicals from Biomass
- Drafting Committee
- E48.05 - Biomass Conversion
Relations
- Effective Date
- 01-Apr-2019
- Effective Date
- 01-Dec-2023
- Effective Date
- 01-Apr-2019
- Effective Date
- 01-Jan-2015
- Effective Date
- 15-Aug-2013
- Effective Date
- 01-Apr-2012
- Effective Date
- 15-Jul-2007
- Effective Date
- 01-Nov-2006
- Effective Date
- 01-Jan-1994
- Effective Date
- 29-Sep-1989
- Effective Date
- 01-Jan-1987
- Effective Date
- 01-Apr-2019
Overview
ASTM E1534-93(2019): Standard Test Method for Determination of Ash Content of Particulate Wood Fuels specifies the procedure to determine the ash content in particulate wood fuels, such as wood chips, pellets, and other forms defined by biomass fuel terminology. The ash content determined by this standard represents the percentage of incombustible residue remaining after dry oxidation, providing a direct quantitative measure of material that does not contribute to the fuel’s energy value.
This ASTM standard is essential for laboratories, bioenergy producers, and quality control professionals who seek accurate, reproducible data on the noncombustible fraction of wood-based fuels using controlled methods.
Key Topics
- Ash Content Analysis: The method determines the percent ash remaining after the combustion of particulate wood fuels, measured as residue after high-temperature dry oxidation.
- Defined Test Conditions: Procedures ensure precise control of temperature, duration, and sample handling to maximize repeatability and reproducibility.
- Instrumentation: The method uses specific equipment, including silica or porcelain crucibles, a controlled muffle furnace, and an analytical balance, to ensure standardized results.
- Result Calculation: The percent ash is calculated by comparing weights before and after combustion, with clear reporting requirements to two decimal places.
- Precision: The standard sets guidelines for intra-laboratory and inter-laboratory agreement, supporting consistent quality assessments.
- Safety Practices: Users must independently manage safety, health, and environmental considerations when applying this standard.
Applications
This test method has wide practical value for the bioenergy sector and industries that use particulate wood fuels:
- Bioenergy Producers: Analyze ash content to ensure consistency and optimize fuel quality for boilers, power plants, and heating systems.
- Quality Control: Essential for suppliers and consumers assessing compliance with fuel specifications or contractual standards for wood-based biomass.
- Research and Development: Facilities comparing various wood fuel sources rely on ash content data to evaluate fuel efficiency and combustion characteristics.
- Regulatory Compliance: Provides an internationally recognized method aligned with WTO TBT principles to meet reporting or environmental standards.
- Performance Evaluation: Operators can assess contamination or mineral content in biomass fuels, which affects operational costs and emissions.
Related Standards
Several ASTM standards and terminology references work in conjunction with ASTM E1534-93(2019):
- ASTM E871: Standard Test Method for Moisture Analysis of Particulate Wood Fuels – used for initial fuel sample preparation and conversion between measurement bases.
- ASTM D3180: Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases – referenced for analytical conversions and reporting.
- ASTM E1126: Terminology Relating to Biomass Fuels – defines materials covered by this standard (note: withdrawn in 2003 but still referenced).
- International Standardization: Developed following World Trade Organization (WTO) Technical Barriers to Trade (TBT) guidelines, ensuring global applicability and harmonization.
Practical Value
Following ASTM E1534-93(2019) delivers robust, reproducible results essential for energy yield calculations, fuel grading, and minimizing operational inefficiencies. By measuring ash content using this standardized method, stakeholders across the biomass energy supply chain benefit from reliable data and improved decision-making regarding wood fuel sourcing, processing, and combustion system maintenance.
Keywords: ASTM E1534, ash content, particulate wood fuels, biomass fuel analysis, wood fuel quality, noncombustible residue, bioenergy standards, biomass testing.
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Frequently Asked Questions
ASTM E1534-93(2019) is a standard published by ASTM International. Its full title is "Standard Test Method for Determination of Ash Content of Particulate Wood Fuels". This standard covers: SIGNIFICANCE AND USE 5.1 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 E1126. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 1.4 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.
SIGNIFICANCE AND USE 5.1 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 E1126. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 1.4 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.
ASTM E1534-93(2019) is classified under the following ICS (International Classification for Standards) categories: 75.160.10 - Solid fuels. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM E1534-93(2019) has the following relationships with other standards: It is inter standard links to ASTM E1534-93(2013), ASTM D3180-15(2023), ASTM E871-82(2019), ASTM D3180-15, ASTM E871-82(2013), ASTM D3180-12, ASTM D3180-07, ASTM E871-82(2006), ASTM E1126-94a, ASTM D3180-89(2002), ASTM E871-82(1998), ASTM E1755-01(2020). Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM E1534-93(2019) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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: E1534 − 93 (Reapproved 2019)
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 4. Summary of Test Method
1.1 This test method covers the determination of ash ex- 4.1 Ash content is determined by establishing the weight
pressed as the percent of residue remaining after dry oxidation loss of the sample when heated under rigidly controlled
of particulate wood fuels. Particulate wood fuels are defined in conditions of temperature, time, sample weight, and equipment
Terminology E1126. specifications.
1.2 The values stated in SI units are to be regarded as
5. Significance and Use
standard. No other units of measurement are included in this
standard. 5.1 The ash content determines the weight of the noncom-
bustible part of a particulate wood fuel that oxidizes during a
1.3 This standard does not purport to address all of the
combustion process but releases no energy.
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, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. 6.1 Crucibles, having a capacity of 30 mLor more. Silica or
1.4 This international standard was developed in accor- porcelain materials are acceptable.
dance with internationally recognized principles on standard-
6.2 Muffle Furnace—An electric furnace is recommended
ization established in the Decision on Principles for the
for igniting the wood sample. A furnace fitted with an indicat-
Development of International Standards, Guides and Recom-
ing pyrometer, so that the desired temperature can be
mendations issued by the World Trade Organization Technical
maintained, is preferable.
Barriers to Trade (TBT) Committee.
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 Test 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
2003)
0.1 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 E1126.
7.5 Place the sample in a cold muffle furnace. Turn on the
muffle furnace, and slowly heat the furnace to a temperature of
580 to 600 °C. Avoid heating above this maximum.
This test method is under the jurisdiction of ASTM Commi
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