ASTM E871-82(1998)

Standard Method of Moisture Analysis of Particulate Wood Fuels

SCOPE
1.1 This method covers the determination of total weight basis moisture in the analysis sample of particulate wood fuel. The particulate wood fuel may be sanderdust, sawdust, pellets, green tree chips, hogged fuel, or other type particulate wood fuel having a maximum particle volume of 16.39 cm  (1 in. ). It is used for calculating other analytical results to a dry basis. Moisture, when determined as herein described, may be used to indicate yields on processes, to provide the basis for purchasing and selling, or to establish burning characteristics.  
1.2 The values stated in SI units are to 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 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-Dec-1986
• Technical Committee: E48 - Bioenergy and Industrial Chemicals from Biomass
• Drafting Committee: E48.05 - Biomass Conversion

Relations

• Replaced By: ASTM E871-82(2006) - Standard Test Method for Moisture Analysis of Particulate Wood Fuels
• Effective Date: 01-Nov-2006
• Referred By: ASTM E2779-10(2017) - Standard Test Method for Determining Particulate Matter Emissions from Pellet Heaters
• Effective Date: 01-Jan-1987
• Referred By: ASTM E1534-93(2019) - Standard Test Method for Determination of Ash Content of Particulate Wood Fuels
• Effective Date: 01-Jan-1987
• Referred By: ASTM E1756-08(2020) - Standard Test Method for Determination of Total Solids in Biomass
• Effective Date: 01-Jan-1987
• Referred By: ASTM E1358-97(2019) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
• Effective Date: 01-Jan-1987
• Referred By: ASTM E1509-22 - Standard Specification for Room Heaters, Pellet Fuel-Burning Type
• Effective Date: 01-Jan-1987
• Referred By: ASTM E872-82(2019) - Standard Test Method for Volatile Matter in the Analysis of Particulate Wood Fuels
• Effective Date: 01-Jan-1987
• Referred By: ASTM E870-82(2019) - Standard Test Methods for Analysis of Wood Fuels
• Effective Date: 01-Jan-1987

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E871 –82 (Reapproved 1998)
Standard Method for
Moisture Analysis of Particulate Wood Fuels
This standard is issued under the fixed designation E 871; 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 conditions of temperature, time and atmosphere, sample
weight, and equipment specifications.
1.1 This method covers the determination of total weight
basis moisture in the analysis sample of particulate wood fuel.
5. Apparatus
The particulate wood fuel may be sanderdust, sawdust, pellets,
5.1 Drying Oven—For determining the moisture of wood,
green tree chips, hogged fuel, or other type particulate wood
3 3
an ordinary drying oven with openings for natural air circula-
fuel having a maximum particle volume of 16.39 cm (1 in. ).
tion and capable of temperature regulation of 103 6 1°C shall
It is used for calculating other analytical results to a dry basis.
be used.
Moisture,whendeterminedashereindescribed,maybeusedto
5.2 Open Containers, nonporous glass, metal, or ceramic
indicate yields on processes, to provide the basis for purchas-
and of a configuration so as to accommodate the test sample.
ing and selling, or to establish burning characteristics.
3 3
The minimum volume shall be 32.18 cm (2 in. ).
1.2 The values stated in SI units are to be regarded as the
5.3 Desiccator, of sufficient size to contain the open con-
standard. The values given in parentheses are for information
tainer.
only.
1.3 This standard does not purport to address all of the
6. Procedure
safety problems, if any, associated with its use. It is the
6.1 Sampling:
responsibility of the user of this standard to establish appro-
6.1.1 Place of Sampling—Take the sample where the wood
priate safety and health practices and determine the applica-
is being loaded into or unloaded from means of transportation
bility of regulatory limitations prior to use.
or when discharged from storage bins or conveyors.
2. Referenced Documents
NOTE 1—Samples collected from the surface of piles are, in general,
2.1 ASTM Standards: unreliable because of the exposure to the environment. If necessary,
collect nine increments from a foot or more below the surface at nine
D 346 Practice for Collection and Preparation of Coke
points covering the pile.
Samples for Laboratory Analysis
D 2013 Method of Preparing Coal Samples for Analysis
6.1.2 Collection of Gross Sample:
6.1.2.1 Collect increments regularly, systematically, and
3. Significance and Use
with such frequency that the entire quantity of wood sampled
3.1 The test procedures described in this method can be
will be represented proportionally in the gross sample.
used to determine the total weight basis moisture of any
6.1.2.2 The quantity of the sample shall be large enough to
particulatewoodfuelmeetingtherequirementsspecifiedinthis
be representative but not less than 10 kg (22 lb).
method.
6.1.2.3 Place the samples in an airtight container immedi-
ately after collection. Maintain the samples in the airtight
4. Summary of Method
container whenever possible to prevent gains or losses in
4.1 Moisture is determined by establishing the loss in
moisture from the atmosphere.
weight of the sample when heated under rigidly controlled
6.1.3 Sample reduction may be done by two methods, a
coning and dividing process, or by using a riffle. The opera-
tions of mixing, coning, and quartering are described in
This method is under the jurisdiction of ASTM Committee E-48 on Biotech-
Practice D 346.
nology and is the direct responsibility of Subcommittee E48.05 on Biomass
6.1.3.1
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