ASTM D1108-96

Standard Test Method for Dichloromethane Solubles in Wood

SCOPE
1.1 This test method covers the determination of the dichloromethane soluble content of wood, which is a measure of the waxes, fats, resins, oils, and similar materials.  
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.  Specific precautionary statements are given in Section 4.1.

General Information

• Status: Historical
• Publication Date: 09-Apr-1996
• Technical Committee: D07 - Wood
• Drafting Committee: D07.01 - Fundamental Test Methods and Properties

Relations

• Replaced By: ASTM D1108-96(2001) - Standard Test Method for Dichloromethane Solubles in Wood
• Effective Date: 10-Sep-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 1108 – 96 An American National Standard
Technical Association of Pulp and Paper Industry
Standard Method T 204-os-76
Standard Test Method for
Dichloromethane Solubles in Wood
This standard is issued under the fixed designation D 1108; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Test Specimen
1.1 This test method covers the determination of the dichlo- 5.1 The test specimen shall consist of2gofair-dried
romethane soluble content of wood, which is a measure of the sawdust that has been ground to pass a 425-μm (40 mesh sieve)
waxes, fats, resins, oils, and similar materials. and be retained on a 250-μm (60 mesh) sieve.
1.2 This standard does not purport to address all of the
6. Procedure
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 6.1 Weigh two 2-g test specimens in tared Alundum or
fritted-glass crucibles. Dry one specimen in an oven for2hat
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. Specific precau- 100 to 105°C; then place in a loosely stoppered weighing
tionary statements are given in Section 4.1.1. bottle, cool in a desiccator, and weigh. Continue the drying for
1-h periods until the weight is constant. Calculate the propor-
2. Significance and Use
tion of moisture-free sawdust in the air-dry specimen.
2.1 Dichloromethane extractable content of wood is a mea- 6.2 Place the other specimen in a Soxhlet extraction appa-
sure of such substances as waxes, fats, resins, phytosterols, and ratus having a tared Soxhlet extraction flask. Set a small disk of
nonvolatile hydrocarbons. The amount is influenced by season- fine-mesh screen wire in the top of the crucible to prevent loss
ing or drying the wood. of sample. Extract with 150 mL of dichloromethane for 6 to 8
h, keeping the solvent boiling briskly. This should provide at
3. Apparatus
least six to eight siphonings per hour.
3.1 Filtering Crucibles—Alundum or fritted-glass filtering 6.3 After evaporating the solvent from the extraction flask,
crucibles of coarse porosity shall be used.
dry the flask and contents in an oven for1hat100 to 105°C,
3.2 Extraction Apparatus—A compact form of Soxhlet cool in a desiccator, and weigh. Continue the drying until there
extraction apparatus, with ground-glass joints, is preferable.
is no further loss in weight.
The apparatus shall consist of the following items:
7. Calculation and Report
3.2.1 Soxhlet Extraction Flask having a capacity of 250
mL. 7.1 Report the results as percentage by weight of dichlo-
3.2.2 Soxhlet Extraction Tube, 45 to 50 mm in inside romethane soluble matter in the moisture-free wood,
...