ASTM E871-82(2013)
(Test Method)Standard Test Method for Moisture Analysis of Particulate Wood Fuels
Standard Test Method for Moisture Analysis of Particulate Wood Fuels
SIGNIFICANCE AND USE
4.1 The test procedures described in this test method can be used to determine the total weight basis moisture of any particulate wood fuel meeting the requirements specified in this test method.
SCOPE
1.1 This test 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 cm3 (1 in.3). 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 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.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E871 − 82 (Reapproved 2013)
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 4. Significance and Use
4.1 The test procedures described in this test method can be
1.1 This test method covers the determination of total
used to determine the total weight basis moisture of any
weight basis moisture in the analysis sample of particulate
particulatewoodfuelmeetingtherequirementsspecifiedinthis
wood fuel. The particulate wood fuel may be sanderdust,
test method.
sawdust, pellets, green tree chips, hogged fuel, or other type
particulate wood fuel having a maximum particle volume of
5. Apparatus
3 3
16.39 cm (1 in. ). It is used for calculating other analytical
5.1 Drying Oven—For determining the moisture of wood,
results to a dry basis. Moisture, when determined as herein
an ordinary drying oven with openings for natural air circula-
described, may be used to indicate yields on processes, to
tion and capable of temperature regulation of 103 6 1°C shall
provide the basis for purchasing and selling, or to establish
be used.
burning characteristics.
5.2 Open Containers, nonporous glass, metal, or ceramic
1.2 The values stated in SI units are to be regarded as the
and of a configuration so as to accommodate the test sample.
standard. The values given in parentheses are for information
3 3
The minimum volume shall be 32.18 cm (2 in. ).
only.
5.3 Desiccator, of sufficient size to contain the open con-
1.3 This standard does not purport to address all of the
tainer.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Procedure
priate safety and health practices and determine the applica-
6.1 Sampling:
bility of regulatory limitations prior to use.
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
points covering the pile.
D2013 Practice for Preparing Coal Samples for Analysis
6.1.2 Collection of Gross Sample:
3. Summary of Test Method 6.1.2.1 Collect increments regularly, systematically, and
with such frequency that the entire quantity of wood sampled
3.1 Moisture is determined by establishing the loss in
will be represented proportionally in the gross sample.
weight of the sample when heated under rigidly controlled
6.1.2.2 The quantity of the sample shall be large enough to
conditions of temperature, time and atmosphere, sample
be representative but not less than 10 kg (22 lb).
weight, and equipment specifications.
6.1.2.3 Place the samples in an airtight container immedi-
ately after collection. Maintain the samples in the airtight
container whenever possible to prevent gains or losses in
This test method is under the jurisdiction of ASTM Committee E48 on
moisture from the atmosphere.
Bioenergy and Industrial Chemicals from Biomass and is the direct responsibility of
6.1.3 Sample reduction may be done by two methods, a
Subcommittee E48.05 on Biomass Conversion.
coning and dividing process, or by using a riffle. The opera-
Current edition approved Aug. 15, 2013. Published November 2013. Originally
tions of mixing, coning, and quartering are described in
approved in
...
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