Standard Test Method for Weight Loss of Plasticizers on Heating

SCOPE
1.1 This test method covers the determination of the relative volatility of plasticizers, or volatile contaminants, or both, at elevated temperatures.
1.2 The text of this test method references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this test method.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 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.
Note 1--There are no ISO standards covering the primary subject of this test method.

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ASTM D2288-97 - Standard Test Method for Weight Loss of Plasticizers on Heating
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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 2288 – 97 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Weight Loss of Plasticizers on Heating
This standard is issued under the fixed designation D 2288; 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 * cooled and weighed, after heating periods of 2, 4, and 24 h. The
weight lost in these times is determined and reported as percent
1.1 This test method covers the determination of the relative
plasticizer loss.
volatility of plasticizers, or volatile contaminants, or both, at
elevated temperatures.
5. Significance and Use
1.2 The text of this test method references notes and
5.1 The quantity of volatile components in a plasticizer has
footnotes that provide explanatory material. These notes and
influence on fuming during processing, and the retention of
footnotes (excluding those in tables and figures) shall not be
flexibility and other properties in the end product (see 5.2).
considered as requirements of this test method.
This test method may be used to measure the volatile compo-
1.3 The values stated in SI units are to be regarded as the
nents under closely controlled conditions.
standard.
5.2 Results obtained by this test method are not strictly
1.4 This standard does not purport to address all of the
equivalent to those obtained during processing where condi-
safety concerns, if any, associated with its use. It is the
tions of temperature and air flow are quite different.
responsibility of the user of this standard to establish appro-
5.3 Volatility is dependent upon air flow and temperature.
priate safety and health practices and determine the applica-
Due to the difficulty of controlling air flow, results may vary
bility of regulatory limitations prior to use.
widely between ovens. Therefore, control plasticizers shall be
NOTE 1—There are no ISO standards covering the primary subject of
run simultaneously when making close comparisons.
this test method.
6. Apparatus
2. Referenced Documents
6.1 Oven—Forced-ventilation laboratory oven, Type II,
2.1 ASTM Standards:
Grade A, with rotating turntable driven at a rate of 2 to 6 rpm
D 618 Practice for Conditioning Plastics and Electrical
as specified in Specification E 145.
Insulating Materials for Testing
6.2 Crystallizing Dishes, 50 mm (2 in.) in diameter and 35
D 883 Terminology Relating to Plastics
mm (1 ⁄8 in.) in height.
D 1600 Terminology for Abbreviated Terms Relating to
Plastics
7. Temperatures of Test
E 145 Specification for Gravity-Convection and Forced-
7.1 The test temperatures shall be 105 6 1°C (221 6 2°F)
Ventilation Ovens
or 1556 2°C (310 6 5°F).
3. Terminology
NOTE 2—Preferably volatile plasticizers are tested at 105°C and
permanent-type plasticizers are tested at 155°C. Volatile plasticizers and
3.1 General—Definitions are in accordance with Terminol-
permanent-type plasticizers should not be tested together, as the
ogy D 883 and abbreviations with Terminology D 1600, unless
permanent-type plasticizer may gain weight by absorption of volatiles.
otherwise indicated.
8. Conditioning
4. Summary of Test Method
8.1 Conditioning—Condition the test specimens at 23 6
4.1 Plasticizers are heated in crystallizing dishes in a circu-
2°C (73.4 6 3.6°F) and 50 6 5 % relative humidity for not less
lating air oven on a rotating turntable, at either 105°C (221°F)
than 40 h prior to test in accordance with Procedure A of
or 155°C (310°F). The specimens are removed from the oven,
Practice D 618, for those tests where conditioning is required.
In cases of disagreement, the tolerances shall be6 1°C
(61.8°F) and 62 % relative humidity.
This test method is under the jurisdiction of ASTM Committee D-20 on Plastics
8.2 Test Conditions—Conduct tests in the standard labora-
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials
tory atmosphere of 23 6 2°C (73.4 6 3.6°F) and 50 6 5%
(Section D20.15.11).
relative humidity, unless otherwise specified in the test meth-
Current edition approved July 10, 1997. Published April 1998. Originally
published as D 2288 –64 T. Last
...

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