ASTM G152-05

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:G152–05
Standard Practice for
Operating Open Flame Carbon Arc Light Apparatus for
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Exposure of Nonmetallic Materials
This standard is issued under the fixed designation G 152; 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 1.6 This practice is technically similar to ISO 4892-4.
1.1 This practice covers the basic principles and operating
2. Referenced Documents
procedures for using open flame carbon-arc light and water
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2.1 ASTM Standards:
apparatus intended to reproduce the weathering effects that
D 3980 Practice for Interlaboratory Testing of Paint and
occur when materials are exposed to sunlight (either direct or
Related Materials
through window glass) and moisture as rain or dew in actual
E 691 Practice for Conducting an Interlaboratory Study to
use. This practice is limited to the procedures for obtaining,
Determine the Precision of a Test Method
measuring, and controlling conditions of exposure. A number
G 23 Practice for Operating Light—Exposure Apparatus
of exposure procedures are listed in an appendix; however, this
(Carbon-Arc Type) With and Without Water for Exposure
practice does not specify the exposure conditions best suited
of Nonmetallic Materials
for the material to be tested.
G113 Terminology Relating to Natural and Artificial
NOTE 1—PracticeG 151describesperformancecriteriaforallexposure
Weathering Tests of Nonmetallic Materials
devices that use laboratory light sources. This practice replaces Practice
G 151 Practice for Exposing Nonmetallic Materials in Ac-
G23, which describes very specific designs for devices used for carbon-
celerated Test Devices That Use Laboratory Light Sources
arc exposures.The apparatus described in PracticeG23 is covered by this
2.2 CIE Standard:
practice.
CIE-Publ. No. 85: Recommendations for the Integrated
1.2 Test specimens are exposed to filtered open flame
Irradiance and the Spectral Distribution of Simulated
carbon arc light under controlled environmental conditions.
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Solar Radiation for Testing Purposes
Different filters are described.
2.3 ISO Standards:
1.3 Specimen preparation and evaluation of the results are
ISO 4582, Plastics—Determination of the Changes of
covered in methods or specifications for specific materials.
Colour and Variations in Properties After Exposure to
General guidance is given in Practice G 151 and ISO 4892-1.
Daylight Under Glass, Natural Weathering or Artificial
More specific information about methods for determining the
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Light
change in properties after exposure and reporting these results
ISO 4892-1, Plastics—Methods of Exposure to Laboratory
is described in ISO 4582.
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Light Sources, Part 1, General Guidance
1.4 The values stated in SI units are to be regarded as the
ISO 4892-4, Plastics—Methods of Exposure to Laboratory
standard.
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Light Sources, Part 4, Open-Flame Carbon Arc Lamp
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions—The definitions given in Terminology
priate safety and health practices and determine the applica-
G113 are applicable to this practice.
bility of regulatory limitations prior to use.
1.5.1 Should any ozone be generated from the operation of
the light source, it shall be carried away from the test
specimens and operating personnel by an exhaust system.
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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
Standards volume information, refer to the standard’s Document Summary page on
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This practice is under the jurisdiction ofASTM Committee G03 onWeathering the ASTM website.
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and Durability and is the direct responsibility of Subcommittee G03.03 on Available from Secretary, U.S. National Committee, CIE, National Institute of
Simulated and Controlled Exposure Tests. Standards and Technology, Gaithersburg, MD 20899.
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Current edition approved Jan. 1, 2005. Published February 2005. Originally Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
e1
approved in 1997. Last previous edition approved in 2000 as G 152 – 00a . 4th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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G152–05
3.1.1 As used in this practice, the term sunlight is identical 6.1.1 Filter Types—Radiation emitted by the open flame
to the terms daylight and solar irradiance, global as they a
...