ASTM D1110-84(2007)

Standard Test Methods for Water Solubility of Wood

SIGNIFICANCE AND USE
Cold water removes a part of such extraneous materials as tannins, gums, sugars, and coloring matters. Hot water removes these plus the starches.
SCOPE
1.1 These test methods cover the determination of the water solubility of wood. Two methods are given, as follows:
1.1.1 Method A—Cold-Water Solubility—This method provides a measure of the tannins, gums, sugars, and coloring matter in the wood.
1.1.2 Method B—Hot-Water Solubility—This method provides a measure of the tannins, gums, sugars, coloring matter, and starches in the wood.
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: 79.040 - Wood, sawlogs and sawn timber
• Technical Committee: D07 - Wood
• Drafting Committee: D07.01 - Fundamental Test Methods and Properties

Relations

• Replaces: ASTM D1110-84(2001) - Standard Test Methods for Water Solubility of Wood
• Effective Date: 01-Apr-2007

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1110 − 84(Reapproved 2007) Technical Association of Pulp and Paper Industry
Standard Method T 207 om-81
Standard Test Methods for
Water Solubility of Wood
This standard is issued under the fixed designation D1110; 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 5. Procedure
1.1 These test methods cover the determination of the 5.1 Place a 2-g test specimen, the moisture content of which
water solubility of wood. Two methods are given, as follows: hasbeenpreviouslydetermined,ina400-mLbeaker,andcover
1.1.1 Method A—Cold-Water Solubility—This method pro-
with 300 mL of distilled water. Let this mixture digest at a
vides a measure of the tannins, gums, sugars, and coloring temperature of 23 6 2°C, with frequent stirring, for 48 h.
matter in the wood.
5.2 Filter the material on an Alundum or fritted-glass
1.1.2 Method B—Hot-Water Solubility—This method pro-
crucible, using suction, wash with cold distilled water, and dry
vides a measure of the tannins, gums, sugars, coloring matter,
to constant weight at 100 to 105°C. Drying usually requires
and starches in the wood.
approximately 4 h. Place the crucible in a loosely stoppered
1.2 This standard does not purport to address all of the
weighing bottle, cool in a desiccator, and weigh.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Report
priate safety and health practices and determine the applica-
6.1 Reporttheresultsaspercentageofmattersolubleincold
bility of regulatory limitations prior to use.
water, on the moisture-free basis, calculated as follows:
2. Significance and Use
Cold water solubility,% 5 W 2 W /W 3100 (1)
@~ ! #
1 2 1
2.1 Cold water removes a part of such extraneous materials
where:
as tannins, gums, sugars, and coloring matters. Hot water
W = weight of moisture-free specimen used in 5.1, and
removes these plus the starches.
W = weight of dried specimen after extraction with cold
water (5.2).
METHOD A—COLD-WATER SOLUBILITY
METHOD B—HOT-WATER SOLUBILITY
3. Apparatus
3.1 Filtering Crucibles—Alundum or fritted-glass crucibles
7. Apparatus
of coarse porosity will be required.
7.1 Digestion Apparatus—A 200-mL Erlenmeyer flask pro-
3.2 Filtering Flask—Asuction filtering flask, equipped with
vided with a reflux condenser shall be used.
a rubber flange for the crucible and funnel, shall be provided.
7.2 Water Bath, so constructed that the water can be
4. Test Specimen
maintained at boiling temperature and at a constant-level just
above the solution in the flask.
4.1 The test specimen shall consist of2gofair-dried
sawdust that has been ground to pass a 425-µm sieve and be
7.3 Filtering Crucible and Filtering Flask—See Section 3.
retained on a 250-µm sieve.
8. Test Specimen
These test methods are under the jurisdiction of ASTM Committee D07 on
8.1 See Section 4.
Wood and are the direct responsibility of D07.01 on Fundamental Test Methods and
Properties.
9. Procedure
Current edition approved April 1, 2007
...