Standard Practice for Performing Outdoor Accelerated Weathering Tests of Plastics Using Concentrated Sunlight

SCOPE
1.1 This practice covers the use of Fresnel-reflecting concentrators that use the sun as a source of ultraviolet (UV) and longer wavelength radiation. Such devices are used in the outdoor accelerated exposure testing of plastics.
1.2 This practice provides a procedure for performing outdoor accelerated exposure testing of plastics using a Fresnel-reflector outdoor accelerated weathering test machine. The apparatus is described herein and in Practice G 90 more completely.
1.3 This practice is applicable to a range of plastic materials including, but not limited to, plastic films, sheets, laminates, and extruded and molded products in a variety of shapes and sizes, as specified in .
1.4 This practice describes test conditions that attempt to simulate plastics exposures in desert and subtropical climates. Specimen preparation, property testing procedures, and the evaluation of results are covered in existing test methods or specifications for specific materials.
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. Specific precautionary statements are given in Section .Note 1
This standard and ISO 877.2-1991, Method C, are technically equivalent.

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Historical
Publication Date
14-Sep-2005
Technical Committee
Current Stage
Ref Project

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ASTM D4364-05 - Standard Practice for Performing Outdoor Accelerated Weathering Tests of Plastics Using Concentrated Sunlight
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Designation:D4364 −05
StandardPractice for
Performing Outdoor Accelerated Weathering Tests of
1
Plastics Using Concentrated Sunlight
This standard is issued under the fixed designation D4364; 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* D1435 Practice for Outdoor Weathering of Plastics
D1600 Terminology forAbbreviatedTerms Relating to Plas-
1.1 This practice covers the use of Fresnel-reflecting con-
tics
centrators that use the sun as a source of ultraviolet (UV) and
3
D1898 Practice for Sampling of Plastics (Withdrawn 1998)
longer wavelength radiation. Such devices are used in the
D4141 Practice for Conducting Black Box and Solar Con-
outdoor accelerated exposure testing of plastics.
centrating Exposures of Coatings
1.2 This practice provides a procedure for performing out-
D4517 Test Method for Low-Level Total Silica in High-
door accelerated exposure testing of plastics using a Fresnel-
Purity Water by Flameless Atomic Absorption Spectros-
reflector outdoor accelerated weathering test machine. The
copy
apparatus is described herein and in Practice G90 more
E772 Terminology of Solar Energy Conversion
completely.
E824 Test Method for Transfer of Calibration From Refer-
ence to Field Radiometers
1.3 This practice is applicable to a range of plastic materials
including, but not limited to, plastic films, sheets, laminates, G7 Practice for Atmospheric Environmental Exposure Test-
ing of Nonmetallic Materials
and extruded and molded products in a variety of shapes and
sizes, as specified in 8.2 and 8.3. G24 Practice for Conducting Exposures to Daylight Filtered
Through Glass
1.4 This practice describes test conditions that attempt to
G90 Practice for Performing Accelerated Outdoor Weather-
simulate plastics exposures in desert and subtropical climates.
ing of Nonmetallic Materials Using Concentrated Natural
Specimen preparation, property testing procedures, and the
Sunlight
evaluation of results are covered in existing test methods or
G113 Terminology Relating to Natural andArtificial Weath-
specifications for specific materials.
ering Tests of Nonmetallic Materials
1.5 This standard does not purport to address all of the
4
2.2 ISO Standard:
safety concerns, if any, associated with its use. It is the
ISO 877.2-1991, Method C, Methods of Exposure to Direct
responsibility of the user of this standard to establish appro-
Weathering, to Weathering Using Glass-Filtered Daylight,
priate safety and health practices and determine the applica-
and to Intensified Weathering Using Fresnel Mirrors
bility of regulatory limitations prior to use. Specific precau-
tionary statements are given in Section 7.
3. Terminology
NOTE 1—This standard and ISO 877.2-1991, Method C, are technically
3.1 Definitions—For definitions of technical terms pertain-
equivalent.
ing to plastics used in this practice, see Terminologies D883,
D1600, E772, and G113 (for weathering terminology).
2. Referenced Documents
2
2.1 ASTM Standards:
4. Significance and Use
D859 Test Method for Silica in Water
4.1 This practice involves the concentration of sunlight by a
D883 Terminology Relating to Plastics
system of plane mirrors, arranged to simulate a parabolic
trough focused on an air-cooled target board on which the test
1
ThispracticeisunderthejurisdictionofASTMCommitteeD20onPlasticsand specimens are mounted. Exposure cycles with and without
is the direct responsibility of Subcommittee D20.50 on Durability of Plastics.
water spray that are commonly used for this method are
Current edition approved Sept. 15, 2005. Published October 2005. Originally
approved in 1984. Last previous edition approved in 2002 as D4364 – 02. DOI:
10.1520/D4364-05.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The last approved version of this historical standard is referenced on
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.astm.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
*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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D4364−05
described in Table 1. Other exposure cycles not listed in Table and temperature. The quantitative correlation between expo-
1 can be used, upon consensual agreement between interested sures conducted in accordance with this prac
...

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