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ASTM E1358-97(2019)

(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, Test 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 Test Method E871, for the determination of the moisture 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
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(2013) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
Effective Date
01-Apr-2019
Refers
ASTM E871-82(2019) - Standard Test Method for Moisture Analysis of Particulate Wood Fuels
Effective Date
01-Apr-2019
Refers
ASTM E871-82(2013) - Standard Test Method for Moisture Analysis of Particulate Wood Fuels
Effective Date
15-Aug-2013
Refers
ASTM E871-82(2006) - Standard Test Method for Moisture Analysis of Particulate Wood Fuels
Effective Date
01-Nov-2006
Refers
ASTM E1126-94a - Standard Terminology Relating to Biomass Fuels (Withdrawn 2003)
Effective Date
01-Jan-1994
Refers
ASTM E871-82(1998) - Standard Method of Moisture Analysis of Particulate Wood Fuels
Effective Date
01-Jan-1987
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-Apr-2019

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ASTM E1358-97(2019) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave OvenASTM E1358-97(2019) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
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ASTM E1358-97(2019) - Standard Test Method for Determination of Moisture Content of Particulate Wood Fuels Using a Microwave Oven
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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: E1358 − 97 (Reapproved 2019)
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 3. Summary of Test Method
3.1 Moisture is determined by establishing the loss in mass
1.1 This test method provides an alternative method to Test
Method E871, for the determination of the moisture of particu- of the sample when heated under rigidly controlled conditions
of temperature, time, sample mass, and equipment specifica-
late wood fuels. Particulate wood fuels are defined in Termi-
nology E1126. tions.
1.2 The values stated in SI units are to be regarded as
4. Significance and Use
standard. No other units of measurement are included in this
4.1 This test method provides a rapid determination for
standard.
moisture in particulate wood fuels in several minutes. The
1.3 This standard does not purport to address all of the
standard method, Test Method E871, requires a minimum of
safety concerns, if any, associated with its use. It is the
18 h. This method is applicable to situations such as the
responsibility of the user of this standard to establish appro-
spot-check of the moisture delivered by truck where a quick
priate safety, health, and environmental practices and deter-
indication of the moisture of wood delivered is desirable.
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
5. Apparatus
dance with internationally recognized principles on standard-
5.1 Microwave Oven—Any standard commercial micro-
ization established in the Decision on Principles for the
wave oven having a power output of at least 600 W can be
Development of International Standards, Guides and Recom-
used.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
6. Procedure
6.1 Obtain a 50 g sample of the wood to be tested using
2. Referenced Documents
techniques outlined in Test Method E871.
2.1 ASTM Standards:
6.2 Determine the weight of 3 sheets of standard paper
E871 Test Method for Moisture Analysis of Particulate
towels placed on top of each other. Record this mass as M
T
Wood Fuels
(Mass of Towels).
E1126 Terminology Relating to Biomass Fuels (Withdrawn
6.3 Place the 50 g sample of the wood on top of the paper
2003)
towels and determine the mass of the initial sample. Record the
mass as M (Mass of Sample and Towels Initial).
STI
1 6.4 Place the sample in the microwave and heat on full
This test method is under the jurisdiction of ASTM Committee E48 on
power using the schedule shown in Table 1 for the type of
Bioenergy and Industrial Chemicals from Biomass and is the direct responsibility of
Subcommittee E48.05 on Biomass Conversion.
wood fuel being tested. Remove sample and towels from oven
Current edition approved April 1, 2019. Published April 2019. Originally
after each heating interval, weigh, a
...

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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.
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4.1 Summarizing the ash mass fraction and the mass fraction of the organic constituents in a specific format under the heading, Ultimate Analysis, provides a convenient and uniform system for comparing coals or cokes. This tabulation used with that of Proximate Analysis  (Practice D3172) permits cursory valuation of coals for use as fuel or in other carbonaceous processes and of cokes for metallurgical purpose.
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