Standard Practice for Enclosed Carbon-Arc Exposures of Plastics

SIGNIFICANCE AND USE
The ability of a plastic material to resist deterioration of its electrical, mechanical, and optical properties caused by exposure to light, heat, and water can be very significant for many applications. This practice is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat. The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena such as atmospheric pollution, biological attack, and saltwater exposure. (Warning—Variation in results may be expected when operating conditions are varied within the accepted limits of this practice; therefore, no reference to the use of this practice shall be made unless accompanied by a report prepared in accordance with Section 9 that describes the specific operating conditions used. Refer to Practice G 151 for detailed information on the caveats applicable to use of results obtained in accordance with this practice.)
Note 2—Additional information on sources of variability and on strategies for addressing variability in the design, execution, and data analysis of laboratory-accelerated exposure tests is found in Guide G 141.
Reproducibility of test results between laboratories has been shown to be good when the stability of materials is evaluated in terms of performance ranking compared to other materials or to a control; therefore, exposure of a similar material of known performance (a control) at the same time as the test materials is strongly recommended.3 ,4 It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.
Test results will depend upon the care that is taken to operate the equipment in accordance with Practice G 153. Significant factors include regulation of line voltage, freedom from salt or other deposits from water, temperature and humidity control, and conditions of the electrodes.
SCOPE
1.1 This practice covers specific procedures and test conditions that are applicable for exposure of plastics in enclosed carbon-arc devices conducted in accordance with Practices G 151 and G 153. This practice also covers the preparation of test specimens, the test conditions suited for plastics, and the evaluation of test results.
1.2 This practice does not cover filtered open-flame carbon-arc exposures of plastics, which are covered in Practice D 1499. Practice D 5031 describes enclosed carbon-arc exposures of paints and related coatings.
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 is no known ISO equivalent to this practice.

General Information

Status
Historical
Publication Date
28-Feb-2007
Technical Committee
Current Stage
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ASTM D6360-07 - Standard Practice for Enclosed Carbon-Arc Exposures of Plastics
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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: D6360 − 07
StandardPractice for
1
Enclosed Carbon-Arc Exposures of Plastics
This standard is issued under the fixed designation D6360; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* G141Guide for Addressing Variability in Exposure Testing
of Nonmetallic Materials
1.1 This practice covers specific procedures and test condi-
G147Practice for Conditioning and Handling of Nonmetal-
tions that are applicable for exposure of plastics in enclosed
lic Materials for Natural and Artificial Weathering Tests
carbon-arc devices conducted in accordance with Practices
G151PracticeforExposingNonmetallicMaterialsinAccel-
G151 and G153. This practice also covers the preparation of
erated Test Devices that Use Laboratory Light Sources
test specimens, the test conditions suited for plastics, and the
G153Practice for Operating Enclosed Carbon Arc Light
evaluation of test results.
Apparatus for Exposure of Nonmetallic Materials
1.2 This practice does not cover filtered open-flame carbon-
G169Guide for Application of Basic Statistical Methods to
arcexposuresofplastics,whicharecoveredinPracticeD1499.
Weathering Tests
Practice D5031 describes enclosed carbon-arc exposures of
paints and related coatings.
3. Terminology
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1 The definitions in Terminology G113 are applicable to
responsibility of the user of this standard to establish appro-
this practice.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4. Significance and Use
NOTE 1—There is no known ISO equivalent to this practice.
4.1 The ability of a plastic material to resist deterioration of
its electrical, mechanical, and optical properties caused by
2. Referenced Documents
exposure to light, heat, and water can be very significant for
2
2.1 ASTM Standards:
manyapplications.Thispracticeisintendedtoinduceproperty
D1499Practice for Filtered Open-Flame Carbon-Arc Expo-
changes associated with end-use conditions, including the
sures of Plastics
effects of sunlight, moisture, and heat. The exposure used in
D3980Practice for Interlaboratory Testing of Paint and
thispracticeisnotintendedtosimulatethedeteriorationcaused
3
Related Materials (Withdrawn 1998)
by localized weather phenomena such as atmospheric
D5031Practice for Enclosed Carbon-Arc Exposure Tests of
pollution, biological attack, and saltwater exposure.
Paint and Related Coatings
(Warning—Variation in results may be expected when oper-
D5870Practice for Calculating Property Retention Index of
ating conditions are varied within the accepted limits of this
Plastics
practice;therefore,noreferencetotheuseofthispracticeshall
E691Practice for Conducting an Interlaboratory Study to
be made unless accompanied by a report prepared in accor-
Determine the Precision of a Test Method
dance with Section 9 that describes the specific operating
G113Terminology Relating to Natural andArtificialWeath-
conditions used. Refer to Practice G151 for detailed informa-
ering Tests of Nonmetallic Materials
tion on the caveats applicable to use of results obtained in
accordance with this practice.)
1
ThispracticeisunderthejurisdictionofASTMCommitteeD20onPlasticsand
NOTE 2—Additional information on sources of variability and on
is the direct responsibility of Subcommittee D20.50 on Durability of Plastics.
strategies for addressing variability in the design, execution, and data
Current edition approved March 1, 2007. Published March 2007. Originally
analysis of laboratory-accelerated exposure tests is found in Guide G141.
approved in 1999. Last previous edition approved in 1999 as D6360-99. DOI:
10.1520/D6360-07.
2 4.2 Reproducibility of test results between laboratories has
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
been shown to be good when the stability of materials is
Standards volume information, refer to the standard’s Document Summary page on
evaluated in terms of performance ranking compared to other
the ASTM website.
3 materials or to a control; therefore, exposure of a similar
The last approved version of this historical standard is referenced on
www.astm.org. material of known performance (a control) at the same time as
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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