ASTM E871-82(2019)

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: E871 − 82 (Reapproved 2019)
Standard Test Method for
Moisture Analysis of Particulate Wood Fuels
This standard is issued under the fixed designation E871; 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 3. Summary of Test Method
3.1 Moisture is determined by establishing the loss in
1.1 This test method covers the determination of total
weight of the sample when heated under rigidly controlled
weight basis moisture in the analysis sample of particulate
conditions of temperature, time and atmosphere, sample
wood fuel. The particulate wood fuel may be sanderdust,
weight, and equipment specifications.
sawdust, pellets, green tree chips, hogged fuel, or other type
particulate wood fuel having a maximum particle volume of
3 3
4. Significance and Use
16.39 cm (1 in. ). It is used for calculating other analytical
results to a dry basis. Moisture, when determined as herein
4.1 The test procedures described in this test method can be
described, may be used to indicate yields on processes, to used to determine the total weight basis moisture of any
particulatewoodfuelmeetingtherequirementsspecifiedinthis
provide the basis for purchasing and selling, or to establish
test method.
burning characteristics.
1.2 The values stated in SI units are to be regarded as the
5. Apparatus
standard. The values given in parentheses are for information
5.1 Drying Oven—For determining the moisture of wood,
only.
an ordinary drying oven with openings for natural air circula-
1.3 This standard does not purport to address all of the
tion and capable of temperature regulation of 103 6 1 °C shall
safety concerns, if any, associated with its use. It is the
be used.
responsibility of the user of this standard to establish appro-
5.2 Open Containers, nonporous glass, metal, or ceramic
priate safety, health, and environmental practices and deter-
and of a configuration so as to accommodate the test sample.
mine the applicability of regulatory limitations prior to use.
3 3
The minimum volume shall be 32.18 cm (2 in. ).
1.4 This international standard was developed in accor-
5.3 Desiccator, of sufficient size to contain the open con-
dance with internationally recognized principles on standard-
tainer.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
6. Procedure
mendations issued by the World Trade Organization Technical
6.1 Sampling:
Barriers to Trade (TBT) Committee.
6.1.1 Place of Sampling—Take the sample where the wood
is being loaded into or unloaded from means of transportation
2. Referenced Documents
or when discharged from storage bins or conveyors.
2.1 ASTM Standards:
NOTE 1—Samples collected from the surface of piles are, in general,
D346 Practice for Collection and Preparation of Coke
unreliable because of the exposure to the environment. If necessary,
Samples for Laboratory Analysis
collect nine increments from a foot or more below the surface at nine
D2013 Practice for Preparing Coal Samples for Analysis
points covering the pile.
6.1.2 Collection of Gross Sample:
6.1.2.1 Collect increments regularly, systematically, and
This test method is under the jurisdiction of ASTM Committee E48 on
with such frequency that the entire quantity of wood sampled
Bioenergy and Industrial Chemicals from Biomass and is the direct responsibility of
will be represented proportionally in the gross sample.
Subcommittee E48.05 on Biomass Conversion.
6.1.2.2 The quantity of the sample shall be large enough to
Current edition approved April 1, 2019. Published April 2019. Originally
be representative but not less than 10 kg (22 lb).
approvedin1982.Lastpreviouseditionapprovedin2013asE871 – 82(2013).DOI:
10.1520/E0871-82R19.
6.1.2.3 Place the samples in an airtight container immedi-
For referenced AST
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