Standard Practice for Testing Plasticizer Compatibility in Poly(Vinyl Chloride) (PVC) Compounds Under Humid Conditions

SIGNIFICANCE AND USE
This practice provides an accelerated method for determining the stability of PVC compounds with respect to plasticizer compatibility under humid conditions.
The temperatures and humidity employed in this test can represent actual use conditions, but are intended primarily for rating materials.
SCOPE
1.1 This practice defines the conditions for the exposure and qualitative evaluation of poly(vinyl chloride) (PVC) compounds for plasticizer compatibility under humid conditions. Change in appearance is used for judging compatibility.
1.2 The text of this practice 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 practice.
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 practice.

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Publication Date
31-Dec-2000
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ASTM D2383-97(2001) - Standard Practice for Testing Plasticizer Compatibility in Poly(Vinyl Chloride) (PVC) Compounds Under Humid Conditions
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D2383–97 (Reapproved 2001)
Standard Practice for
Testing Plasticizer Compatibility in Poly(Vinyl Chloride)
(PVC) Compounds Under Humid Conditions
This standard is issued under the fixed designation D 2383; 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* 4. Summary of Practice
1.1 This practice defines the conditions for the exposure and 4.1 Specimens are suspended over water in closed contain-
qualitative evaluation of poly(vinyl chloride) (PVC) com- ers and aged at either 60°C (140°F) or 80°C (176°F). The
pounds for plasticizer compatibility under humid conditions. specimens are removed from the containers at specified inter-
Change in appearance is used for judging compatibility. vals and their appearance is rated in accordance with 9.1 and
1.2 The text of this practice references notes and footnotes recorded.
that provide explanatory material. These notes and footnotes
5. Significance and Use
(excluding those in tables and figures) shall not be considered
5.1 This practice provides an accelerated method for deter-
as requirements of this practice.
1.3 The values stated in SI units are to be regarded as the mining the stability of PVC compounds with respect to
plasticizer compatibility under humid conditions.
standard.
1.4 This standard does not purport to address all of the 5.2 Thetemperaturesandhumidityemployedinthistestcan
represent actual use conditions, but are intended primarily for
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- rating materials.
priate safety and health practices and determine the applica-
6. Apparatus
bility of regulatory limitations prior to use.
6.1 Screw-Cap Glass Jars or Capped Metal Containers,
NOTE 1—There are no ISO standards covering the primary subject of
large enough to avoid contact between specimens. The covers
this practice.
shall be provided on the inside with hooks of a corrosion-
resistant metal such as stainless steel, nichrome or nickel.
2. Referenced Documents
6.2 Forced-Ventilation Laboratory Oven, Type II, Grade A,
2.1 ASTM Standards:
in accordance with Specification E 145.
D 883 Terminology Relating to Plastics
D 1249 Specification for Octyl Ortho-Phthalate Ester Plas-
7. Specimen Preparation (Note 2)
ticizers
7.1 Cut test specimens with one side having a surface area
D 1600 Terminology for Abbreviated Terms Relating to
of 25 cm from a 0.75-mm (0.029-in.) thick smooth surface
Plastics
plastic sheet (60.05 mm (0.002-in.)) Punch a small hole near
D 1755 Specification for Poly(Vinyl Chloride) Resins
the edge for hanging the specimen.
E 145 Specification for Gravity-Convection and Forced-
Ventilation Ovens
NOTE 2—For use as a control in testing the relative performance of
plasticizers, the following clear formulation may be employed.
3. Terminology
Parts
3.1 General—Definitions are in accordance with Terminol-
General-Purpose PVC Resin:
ogy D 883 and abbreviations with Terminology D 1600, unless
Type GP 40000 as defined in Specification D 1755. 100
otherwise indicated.
Plasticizer:
Di-2-ethylhexyl phthalate (Specification D 1249) 50
This practice is under the jurisdiction ofASTM Committee D20 on Plastics and
Stabilizer:
is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials
Coprecipitated solid barium-cadmium laurate (barium: 1
(Section D20.15.11).
cadmium 2:1)
Current edition approved July 10, 1997. Published April 1998. Originally
published as D 2383 – 69. Last previous edition, D 2383 – 92.
7.2 Process the test compound in the usual manner on a
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
two-roll mill for 5 min at the appropriate temperature for the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
plasticizer
...

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