ASTM G152-13

Standard Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials

SIGNIFICANCE AND USE
5.1 The use of this apparatus is intended to induce property changes associated with the end use conditions, including the effects of sunlight, moisture, and heat. These exposures may include a means to introduce moisture to the test specimen. Exposures are not intended to simulate the deterioration caused by localized weather phenomena, such as atmospheric pollution, biological attack, and saltwater exposure. Alternatively, the exposure may simulate the effects of sunlight through window glass. Typically, these exposures would include moisture in the form of humidity.Note 2—Caution: Refer to Practice G151 for full cautionary guidance applicable to all laboratory weathering devices.  
5.2 Variation in results may be expected when operating conditions are varied within the accepted limits of this practice. No reference, therefore, shall be made to results from the use of this practice unless accompanied by a report detailing the specific operating conditions in conformance with Section 10.  
5.2.1 It is recommended that a similar material of known performance, a control, be exposed simultaneously with the test specimen to provide a standard for comparative purposes. It is best practice to use control materials known to have relatively poor and good durability. It is recommended that at least three replicates of each material evaluated be exposed in each test to allow for statistical evaluation of results.
SCOPE
1.1 This practice covers the basic principles and operating procedures for using open flame carbon-arc light and water apparatus intended to reproduce the weathering effects that occur when materials are exposed to sunlight (either direct or through window glass) and moisture as rain or dew in actual use. This practice is limited to the procedures for obtaining, measuring, and controlling conditions of exposure. A number of exposure procedures are listed in an appendix; however, this practice does not specify the exposure conditions best suited for the material to be tested.Note 1—Practice G151 describes performance criteria for all exposure devices that use laboratory light sources. This practice replaces Practice G23, which describes very specific designs for devices used for carbon-arc exposures. The apparatus described in Practice G23 is covered by this practice.  
1.2 Test specimens are exposed to filtered open flame carbon arc light under controlled environmental conditions. Different filters are described.  
1.3 Specimen preparation and evaluation of the results are covered in methods or specifications for specific materials. General guidance is given in Practice G151 and ISO 4892-1. More specific information about methods for determining the change in properties after exposure and reporting these results is described in Practice D5870.  
1.4 The values stated in SI units are to be regarded as the standard.  
1.5 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.  
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.  
1.6 This practice is technically similar to ISO 4892-4.

General Information

• Status: Historical
• Publication Date: 30-Jun-2013
• ICS: 19.040 - Environmental testing
• Technical Committee: G03 - Weathering and Durability
• Drafting Committee: G03.03 - Simulated and Controlled Exposure Tests

Standards Content (Sample)

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: G152 − 13
Standard Practice for
Operating Open Flame Carbon Arc Light Apparatus for
1
Exposure of Nonmetallic Materials
This standard is issued under the fixed designation G152; 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* 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
2
apparatus intended to reproduce the weathering effects that 2.1 ASTM Standards:
occur when materials are exposed to sunlight (either direct or D3980 Practice for Interlaboratory Testing of Paint and
3
through window glass) and moisture as rain or dew in actual Related Materials (Withdrawn 1998)
use. This practice is limited to the procedures for obtaining, D5870 Practice for Calculating Property Retention Index of
measuring, and controlling conditions of exposure. A number Plastics
of exposure procedures are listed in an appendix; however, this E691 Practice for Conducting an Interlaboratory Study to
practice does not specify the exposure conditions best suited Determine the Precision of a Test Method
for the material to be tested. G23 Practice for Operating Light-Exposure Apparatus
(Carbon-Arc Type) With and Without Water for Exposure
NOTE 1—Practice G151 describes performance criteria for all exposure
3
of Nonmetallic Materials (Withdrawn 2000)
devices that use laboratory light sources. This practice replaces Practice
G113 Terminology Relating to Natural andArtificial Weath-
G23,whichdescribesveryspecificdesignsfordevicesusedforcarbon-arc
exposures. The apparatus described in Practice G23 is covered by this ering Tests of Nonmetallic Materials
practice.
G151 Practice for Exposing Nonmetallic Materials inAccel-
erated Test Devices that Use Laboratory Light Sources
1.2 Test specimens are exposed to filtered open flame
carbon arc light under controlled environmental conditions.
2.2 CIE Standard:
Different filters are described.
CIE-Publ. No. 85: Recommendations for the Integrated
Irradiance and the Spectral Distribution of Simulated
1.3 Specimen preparation and evaluation of the results are
4
covered in methods or specifications for specific materials. Solar Radiation for Testing Purposes
General guidance is given in Practice G151 and ISO 4892-1.
2.3 ISO Standards:
More specific information about methods for determining the
ISO 4892-1 Plastics—Methods of Exposure to Laboratory
4
change in properties after exposure and reporting these results
Light Sources, Part 1, General Guidance
is described in Practice D5870.
ISO 4892-4 Plastics—Methods of Exposure to Laboratory
4
Light Sources, Part 4, Open-Flame Carbon Arc Lamp
1.4 The values stated in SI units are to be regarded as the
standard.
3. Terminology
1.5 This standard does not purport to address all of the
3.1 Definitions—ThedefinitionsgiveninTerminologyG113
safety concerns, if any, associated with its use. It is the
are applicable to this practice.
responsibility of the user of this standard to establish appro-
3.1.1 As used in this practice, the term sunlight is identical
priate safety and health practices and determine the applica-
to the terms daylight and solar irradiance, global as they are
bility of regulatory limitations prior to use.
defined in Terminology G113.
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.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1
This practice is under the jurisdiction ofASTM Committee G03 on Weathering Standards volume information, refer to the standard’s Document Summary page on
andDurabilityandisthedirectresponsibilityofSubcommitteeG03.03onSimulated the ASTM website.
3
and Controlled Exposure Tests. The last approved version of this historical standard is referenced on
Current edition approved July 1, 2013. Published July 2013. Originally approved www.astm.org.
4
in 1997. Last previous edition approved in 2006 as G152 – 06. DOI: 10.1520/ Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
G0152-13. 4th Floor, New York, NY 10036, http://www.ansi.org.
*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
1

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G152 − 13
TABLE 1 Typical Relative Ultraviolet Spec
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: G152 − 06 G152 − 13
Standard Practice for
Operating Open Flame Carbon Arc Light Apparatus for
1
Exposure of Nonmetallic Materials
This standard is issued under the fixed designation G152; 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 Scope*
1.1 This practice covers the basic principles and operating procedures for using open flame carbon-arc light and water apparatus
intended to reproduce the weathering effects that occur when materials are exposed to sunlight (either direct or through window
glass) and moisture as rain or dew in actual use. This practice is limited to the procedures for obtaining, measuring, and controlling
conditions of exposure. A number of exposure procedures are listed in an appendix; however, this practice does not specify the
exposure conditions best suited for the material to be tested.
NOTE 1—Practice G151 describes performance criteria for all exposure devices that use laboratory light sources. This practice replaces Practice G23,
which describes very specific designs for devices used for carbon-arc exposures. The apparatus described in Practice G23 is covered by this practice.
1.2 Test specimens are exposed to filtered open flame carbon arc light under controlled environmental conditions. Different
filters are described.
1.3 Specimen preparation and evaluation of the results are covered in methods or specifications for specific materials. General
guidance is given in Practice G151 and ISO 4892-1. More specific information about methods for determining the change in
properties after exposure and reporting these results is described in Practice D5870.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 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.
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.
1.6 This practice is technically similar to ISO 4892-4.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D3980 Practice for Interlaboratory Testing of Paint and Related Materials (Withdrawn 1998)
D5870 Practice for Calculating Property Retention Index of Plastics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
G23 Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic
3
Materials (Withdrawn 2000)
G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
2.2 CIE Standard:
CIE-Publ. No. 85: Recommendations for the Integrated Irradiance and the Spectral Distribution of Simulated Solar Radiation
4
for Testing Purposes
1
This practice is under the jurisdiction of ASTM Committee G03 on Weathering and Durability and is the direct responsibility of Subcommittee G03.03 onSimulated and
Controlled Exposure Tests.
Current edition approved March 15, 2006July 1, 2013. Published May 2006 July 2013. Originally approved in 1997. Last previous edition approved in 20052006 as
G152 – 05.G152 – 06. DOI: 10.1520/G0152-06.10.1520/G0152-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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
1

---------------------- Page: 1 ----------------------
G152 − 13
2.3 ISO Standards:
4
ISO 4892-1 Plastics—Methods of Exposure to Laboratory Light Sources, Part 1, General Guidance
4
ISO 4892-4 Plastics—Methods of Exp
...