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ASTM D1107-96(2007)

(Test Method)

Standard Test Method for Ethanol-Toluene Solubility of Wood

Standard Test Method for Ethanol-Toluene Solubility of Wood

SIGNIFICANCE AND USE
The ethanol-toluene extract of wood consists of the soluble materials not generally considered part of the wood polymeric structure. They are primarily the waxes, fats, resins, and some gums, as well as some water-soluble substances. The amounts are influenced by seasoning and drying.
SCOPE
1.1 This test method covers the determination of the ethanol-toluene soluble content of wood, which is a measure of the waxes, fats, resins, and oils, plus tannins and certain other ether-insoluble components.
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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 4.1.

General Information

Status
Historical
Publication Date
31-Mar-2007
ICS
79.040 - Wood, sawlogs and sawn timber
Technical Committee
D07 - Wood
Drafting Committee
D07.01 - Fundamental Test Methods and Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D1107-96(2001) - Standard Test Method for Ethanol-Toluene Solubility of Wood
Effective Date
01-Apr-2007
Referred By
ASTM D1106-21 - Standard Test Method for Acid-Insoluble Lignin in Wood<sup>,</sup >
Effective Date
01-Apr-2007
Referred By
ASTM E1690-08(2021) - Standard Test Method for Determination of Ethanol Extractives in Biomass
Effective Date
01-Apr-2007

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ASTM D1107-96(2007) - Standard Test Method for Ethanol-Toluene Solubility of WoodASTM D1107-96(2007) - Standard Test Method for Ethanol-Toluene Solubility of Wood
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ASTM D1107-96(2007) - Standard Test Method for Ethanol-Toluene Solubility of Wood
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Standards Content (Sample)


NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1107 − 96(Reapproved 2007) Technical Association of Pulp and Paper Industry
Standard Method T 204 os-76
Standard Test Method for
Ethanol-Toluene Solubility of Wood
This standard is issued under the fixed designation D1107; 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. Reagent
4.1 Ethanol-Toluene Solution—Mix 1.0 L absolute ethanol
1.1 This test method covers the determination of the
and 427 mL toluene. (Warning—Avoid inhalation of vapors
ethanol-toluene soluble content of wood, which is a measure of
and contact with skin.)
the waxes, fats, resins, and oils, plus tannins and certain other
ether-insoluble components.
5. Test Specimen
1.2 This standard does not purport to address all of the
5.1 The test specimen shall consist of2gofair-dried
safety concerns, if any, associated with its use. It is the
sawdust that has been ground to pass a 425-µm (40 mesh) sieve
responsibility of the user of this standard to consult and
and be retained on a 250-µm (60 mesh) sieve.
establish appropriate safety and health practices and deter-
mine the applicability of regulatory limitations prior to use. 6. Procedure
Specific precautionary statements are given in 4.1.
6.1 Weigh two 2-g test specimens in tared Alundum or
fritted-glass crucibles. Dry one specimen in an oven for2hat
2. Significance and Use
100 to 105°C, then place in a loosely stoppered weighing
bottle, cool in a desiccator, and weigh. Continue the drying for
2.1 The ethanol-toluene extract of wood consists of the
1-h periods until the weight is constant. Calculate the propor-
soluble materials not generally considered part of the wood
tions of moisture-free sawdust in the air-dry specimen.
polymeric structure. They are primarily the waxes, fats, resins,
and some gums, as well as some water-soluble substances. The
6.2 Place the other specimen in a Soxhlet extraction appa-
amounts are influenced by seasoning and drying.
ratushavingataredSoxhletextractionflask.Setasmalldiskof
fine-mesh screen wire in the top of the crucible to prevent loss
3. Apparatus
of specimen. Extract with 150 mL of ethanol-toluene solution
for 6 to 8 h, keeping the liquid boiling briskly. This should
3.1 Filtering Crucibles, Alundum or fritted-glass filtering
provide four to six siphonings per hour.
crucibles of coarse porosity.
6.3 After evaporating the solvent from the extraction flask,
3.2 Extraction Apparatus—A compact form of Soxhlet ex-
dry the flask and contents in an oven for 1 h at 100 to 105°C,
traction apparatus, with ground-glass joints, is preferable. The
cool in a dessicator, and weigh. Continue the drying until there
apparatus shall consist of the following items:
is no further loss in weight.
3.2.1 Soxhlet Extraction Flask, having a capacity of 250
...

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SCOPE
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5.1 Density and specific gravity are cornerstone terms that help define many useful properties of wood and wood-based materials. These terms designate concepts that have distinct definitions though they relate to the same characteristic (mass in a unit volume). Generally, in the US and Canada, density of wood is measured in terms of specific gravity, or relative density. In the wood-based composites industry and internationally the term density is often preferred.  
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4.1 Machining tests are made to determine the working qualities and characteristics of different species of wood and of different wood-based panel materials under a variety of machine operations such as are encountered in commercial manufacturing practice. The tests provide a systematic basis for comparing the behavior of different products with respect to woodworking machine operations and of evaluating their potential suitability for certain uses where these properties are of prime importance.
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SCOPE
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