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ASTM D1762-84(2007)

(Test Method)

Standard Test Method for Chemical Analysis of Wood Charcoal

Standard Test Method for Chemical Analysis of Wood Charcoal

SIGNIFICANCE AND USE
Low quality wood and wood residues are used for wood charcoal. This test method is used for evaluating the charcoal to assess the methods of production and assist in developing new methods.
SCOPE
1.1 This test method covers the determination of moisture, volatile matter, and ash in charcoal made from wood. The test method is applicable to lumps and briquets and is designed for the evaluation of charcoal quality. The test method employs apparatus that is found in most laboratories and is adapted to routine analyses of a large number of samples.
1.2 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-Mar-2007
ICS
75.160.10 - Solid fuels
Technical Committee
D07 - Wood
Drafting Committee
D07.01 - Fundamental Test Methods and Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D1762-84(2001) - Standard Test Method for Chemical Analysis of Wood Charcoal
Effective Date
01-Apr-2007

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ASTM D1762-84(2007) - Standard Test Method for Chemical Analysis of Wood Charcoal
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1762 − 84 (Reapproved2007)
Standard Test Method for
Chemical Analysis of Wood Charcoal
This standard is issued under the fixed designation D1762; 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
1.1 This test method covers the determination of moisture, 4.1 Low quality wood and wood residues are used for wood
volatile matter, and ash in charcoal made from wood. The test charcoal. This test method is used for evaluating the charcoal
method is applicable to lumps and briquets and is designed for to assess the methods of production and assist in developing
the evaluation of charcoal quality. The test method employs new methods.
apparatus that is found in most laboratories and is adapted to
5. Apparatus
routine analyses of a large number of samples.
5.1 Mill, for grinding samples.
1.2 This standard does not purport to address all of the
5.2 Oven, with automatic temperature control at 105 6 1°C.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.3 Muffle Furnace, to control temperatures at 750 6 5°C
priate safety and health practices and determine the applica-
and 950 6 5°C.
bility of regulatory limitations prior to use.
5.4 AnalyticalBalance, with a capacity of at least 100 g and
a sensitivity of 0.1 mg.
2. Referenced Documents
2 5.5 Containers, airtight, such as screw-top bottles for stor-
2.1 ASTM Standards:
age of ground samples.
D346 Practice for Collection and Preparation of Coke
5.6 Sieves, as specified in Method D410.
Samples for Laboratory Analysis
D410 Method of SieveAnalysis of Coal (Withdrawn 1988)
5.7 Crucibles, porcelain, 41 by 37 mm with porcelain lids.
D3176 Practice for Ultimate Analysis of Coal and Coke
5.8 Desiccator, containing calcium chloride as drying agent.
D3180 Practice for Calculating Coal and Coke Analyses
from As-Determined to Different Bases
6. Sample
6.1 Sample Selection—The sample shall be selected so as to
3. Summary of Method
be representative of all of the material contained in a lot.
3.1 The sample is ground in a specified manner and the
Sample selection shall be carried out in accordance with
moisture determined as loss in weight in a drying oven at
Practices D346, D3176, and D3180.
105°C.Volatile matter is determined as loss in weight at 950°C
6.2 Sample Preparation—Samples will normally be air-dry
under specified conditions. Ash is determined as the residue
charcoallumpsorbriquets.Rainsoakedorwetsamplesshallbe
after burning to constant weight at 750°C.
spread out to air-dry before carrying out the analysis. For
purchasespecifications,themoisturecontentofthecharcoal,as
received, shall be determined on samples ground to pass a No.
This test method is under the jurisdiction of ASTM Committee D07 on Wood
20 (850-µm) sieve, since excessive grinding will result in loss
and is the direct responsibility of Subcommittee D07.01 on Fundamental Test
of moisture due to the generation of heat. For laboratory
Methods and Properties.
Current edition approved April 1, 2007. Published April 2007. Originally
evaluation, moisture, ash, and volatile matter shall be deter-
approved in 1960. Last previous edition approved in 2001 as D1762 – 84 (2001).
mined on a sample ground as follows:
DOI: 10.1520/D1762-84R07.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM A Wiley Mill, size No. 2, with a 1-mm screen, or an equivalent mill has been
Standards volume information, refer to the standard’s Document Summary page on found satisfactory for this purpose. If you are aware of alternative suppliers, please
the ASTM website. provide this information toASTM International Headquarters. Your comments will
The last approved version of this historical standard is referenced on receive careful consideration at a meeting of the responsible technical committee,
www.astm.org. which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D1762 − 84 (2007)
NOTE 3—Individual nichrome wire baskets to hold the crucibles are
6.2.1 All of the selected sample shall be ground; no part of
convenient.
the sample shall be rejected. The sample shall be pulverized
NOTE 4—If the sparking sample does not check the results of its
rapidly in a mill. Lon
...

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