ASTM D269-97(2020)
(Test Method)Standard Test Method for Insoluble Matter in Rosin and Rosin Derivatives
Standard Test Method for Insoluble Matter in Rosin and Rosin Derivatives
SIGNIFICANCE AND USE
3.1 Rosin, particularly gum and wood rosin, occasionally contains small amounts of contamination such as sand, dirt or bark. Rosin derivatives occasionally contain traces of insoluble material as a result of the raw materials used in their production or they may be generated during the production process. In all instances the presence of such insoluble material should be minimal. This test method describes a rapid and reliable procedure for determining the amount of such insoluble matter. It is based on the knowledge that rosin and most of its derivatives are soluble in numerous organic solvents whereas most common contaminants are not. It is especially useful for internal quality control rather than sales specifications.
SCOPE
1.1 This test method covers the determination of the amount of insoluble matter in rosin and rosin derivatives as described in Terminology D804.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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
Relations
Standards Content (Sample)
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: D269 − 97 (Reapproved 2020)
Standard Test Method for
Insoluble Matter in Rosin and Rosin Derivatives
This standard is issued under the fixed designation D269; 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 minimal. This test method describes a rapid and reliable
procedure for determining the amount of such insoluble matter.
1.1 This test method covers the determination of the amount
It is based on the knowledge that rosin and most of its
of insoluble matter in rosin and rosin derivatives as described
derivatives are soluble in numerous organic solvents whereas
in Terminology D804.
most common contaminants are not. It is especially useful for
1.2 The values stated in SI units are to be regarded as the
internal quality control rather than sales specifications.
standard. The values given in parentheses are for information
only.
4. Apparatus
1.3 This standard does not purport to address all of the
4.1 Beaker, 800 mL.
safety concerns, if any, associated with its use. It is the
4.2 Magnetic Stirring Hot Plate with Polytetrafluoroethyl-
responsibility of the user of this standard to establish appro-
ene (PTFE) Stirbar, or hot plate with manual stirring rod.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4.3 Precut Stainless Steel Circular Screen, 325 mesh with
1.4 This international standard was developed in accor-
0.0014-in. wire diameter. (44-µm openings) as described in
dance with internationally recognized principles on standard-
Specification E11.
ization established in the Decision on Principles for the
4.4 Two-Piece Filter Apparatus, appropriate to hold the
Development of International Standards, Guides and Recom-
stainless steel screens without leaking.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 4.5 Analytical Balance, capable of weighing 0.0001 g.
4.6 Laboratory Tweezers.
2. Referenced Documents
4.7 Forced Draft Oven.
2.1 ASTM Standards:
D804 Terminology Relating to Pine Chemicals, Including
5. Reagents
Tall Oil and Related Products
5.1 Clean Toluene, Hexane, Mineral Spirits, or other suit-
E11 Specification for Woven Wire Test Sieve Cloth and Test
able solvent for the specific material to be checked in, as
Sieves
agreed upon between the customer and the supplier.
3. Significance and Use
6. Procedure
3.1 Rosin, particularly gum and wood rosin, occasionally
contains small amounts of contamination such as sand, dirt or
6.1 Rinse the pre-cut screen thoroughly with the solvent to
bark. Rosin derivatives occasionally contain traces of insoluble
clean it before use.
materialasaresultoftherawmaterialsusedintheirproduction
6.1.1 Dry the clean screen at 105 to 110°C for 30 min, cool
or they may be generated during the production process. In all
in a desiccator, and weigh.
instances the presence of such insoluble material should be
6.1.2 Record the weight of the dry screen to the nearest
0.0001 g.
6.1.3 Place the screen in the filter apparatus and secure it to
This test method is und
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