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ASTM E1358-97(2013)

(Test Method)

Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven

Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven

SIGNIFICANCE AND USE
4.1 This test method provides a rapid determination for moisture in particulate wood fuels in several minutes. The standard method, E871, requires a minimum of 18 h. This method is applicable to situations such as the spot-check of the moisture delivered by truck where a quick indication of the moisture of wood delivered is desirable.
SCOPE
1.1 This test method provides an alternative method to Method E871, for the determination of the moisture of particulate wood fuels. Particulate wood fuels are defined in 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-May-2013
ICS
75.160.10 - Solid fuels
Technical Committee
E48 - Bioenergy and Industrial Chemicals from Biomass
Drafting Committee
E48.05 - Biomass Conversion
Current Stage
Ref Project

Relations

Replaces
ASTM E1358-97(2006) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
Effective Date
01-Jun-2013
Replaced By
ASTM E1358-97(2019) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
Effective Date
01-Apr-2019
Referred By
ASTM D7876-13(2018) - Standard Practice for Practice for Sample Decomposition Using Microwave Heating (With or Without Prior Ashing) for Atomic Spectroscopic Elemental Determination in Petroleum Products and Lubricants
Effective Date
01-Jun-2013

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ASTM E1358-97(2013) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave OvenASTM E1358-97(2013) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
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ASTM E1358-97(2013) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
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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: E1358 − 97 (Reapproved 2013)
Standard Test Method for
Determination of Moisture Content of Particulate Wood
Fuels Using a Microwave Oven
This standard is issued under the fixed designation E1358; 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 standard method, E871, requires a minimum of 18 h. This
method is applicable to situations such as the spot-check of the
1.1 This test method provides an alternative method to
moisture delivered by truck where a quick indication of the
Method E871, for the determination of the moisture of particu-
moisture of wood delivered is desirable.
late wood fuels. Particulate wood fuels are defined in E1126.
1.2 The values stated in SI units are to be regarded as
5. Apparatus
standard. No other units of measurement are included in this
5.1 Microwave Oven—Any standard commercial micro-
standard.
wave oven having a power output of at least 600 W can be
1.3 This standard does not purport to address all of the
used.
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 Obtain a 50 g sample of the wood to be tested using
bility of regulatory limitations prior to use.
techniques outlined in Method E871.
2. Referenced Documents
6.2 Determine the weight of 3 sheets of standard paper
towels placed on top of each other. Record this mass as M
2.1 ASTM Standards: T
(Mass of Towels).
E871 Test Method for Moisture Analysis of Particulate
Wood Fuels
6.3 Place the 50 g sample of the wood on top of the paper
E1126 Terminology Relating to Biomass Fuels (Withdrawn
towels and determine the mass of the initial sample. Record the
2003)
mass as M (Mass of Sample and Towels Initial).
STI
6.4 Place the sample in the microwave and heat on full
3. Summary of Test Method
power using the schedule shown in Table 1 for the type of
3.1 Moisture is determined by establishing the loss in mass
wood fuel being tested. Remove sample and towels from oven
of the sample when heated under rigidly controlled conditions
after each heating interval, weigh, and stir. When the mass
of temperature, time, sample mass, and equipment specifica-
change between successive weighings is less than 0.5 g, record
tions.
this mass as M (Mass of Sample and Towels Final).
STF
4. Significance and Use
7. Calculation
4.1 This test method provides a rapid determination for
7.1 Calculate the mass percent moisture in the sample as
moisture in particulate wood fuels in several minutes. The
follows:
Moisture in Sample, %
This test method is under the jurisdiction of ASTM Committee E48 on
Bioenergy and Industrial Chemicals from Biomass and is the direct responsibility of 5 ~~M 2 M ! 2 ~M 2 M !!/~M 2 M !
STI T STF T STI T
Subcommittee E48.05 on Biomass Conversion.
Current editi
...

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