ASTM G155-13

Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic 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. Therefore, no reference shall be made to results from the use of this practice unless accompanied by a report detailing the specific operating conditions in conformance with the Report Section.  
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 xenon 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 G26, which describes very specific designs for devices used for xenon-arc exposures. The apparatus described in Practice G26 is covered by this practice.  
1.2 Test specimens are exposed to filtered xenon arc light under controlled environmental conditions. Different types of xenon arc light sources and different filter combinations are described.  
1.3 Specimen preparation and evaluation of the results are covered in ASTM 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 standard. No other units of measurement are included in this 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 lamp(s), it shall be carried away from the test specimens and operating personnel by an exhaust system.  
1.6 This practice is technically similar to the following ISO documents: ISO 4892-2, ISO 11341, ISO 105 B02, ISO 105 B04, ISO 105 B05, and ISO 105 B06.

General Information

• Status: Historical
• Publication Date: 31-May-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: G155 − 13
Standard Practice for
Operating Xenon Arc Light Apparatus for Exposure of Non-
1
Metallic Materials
This standard is issued under the fixed designation G155; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 This practice covers the basic principles and operating
bility of regulatory limitations prior to use.
procedures for using xenon arc light and water apparatus
1.5.1 Should any ozone be generated from the operation of
intended to reproduce the weathering effects that occur when
the lamp(s), it shall be carried away from the test specimens
materials are exposed to sunlight (either direct or through
and operating personnel by an exhaust system.
window glass) and moisture as rain or dew in actual use. This
practice is limited to the procedures for obtaining, measuring, 1.6 This practice is technically similar to the following ISO
and controlling conditions of exposure. A number of exposure documents: ISO 4892-2, ISO 11341, ISO 105 B02, ISO 105
procedures are listed in an appendix; however, this practice B04, ISO 105 B05, and ISO 105 B06.
does not specify the exposure conditions best suited for the
2. Referenced Documents
material to be tested.
2
2.1 ASTM Standards:
NOTE 1—Practice G151 describes performance criteria for all exposure
D3980 Practice for Interlaboratory Testing of Paint and
devices that use laboratory light sources. This practice replaces Practice
3
G26, which describes very specific designs for devices used for xenon-arc Related Materials (Withdrawn 1998)
exposures. The apparatus described in Practice G26 is covered by this
D5870 Practice for Calculating Property Retention Index of
practice.
Plastics
1.2 Test specimens are exposed to filtered xenon arc light E691 Practice for Conducting an Interlaboratory Study to
under controlled environmental conditions. Different types of
Determine the Precision of a Test Method
xenon arc light sources and different filter combinations are
G26 Practice for Operating Light-Exposure Apparatus
described.
(Xenon-Arc Type) With and Without Water for Exposure
of Nonmetallic Materials (Discontinued 2001) (With-
1.3 Specimen preparation and evaluation of the results are
3
drawn 2000)
covered in ASTM methods or specifications for specific
G113 Terminology Relating to Natural andArtificial Weath-
materials. General guidance is given in Practice G151 and ISO
ering Tests of Nonmetallic Materials
4892-1. More specific information about methods for deter-
G151 Practice for Exposing Nonmetallic Materials inAccel-
mining the change in properties after exposure and reporting
erated Test Devices that Use Laboratory Light Sources
these results is described in Practice D5870.
2.2 CIE Standards:
1.4 The values stated in SI units are to be regarded as
CIE-Publ. No. 85: Recommendations for the Integrated Ir-
standard. No other units of measurement are included in this
radiance and the Spectral Distribution of Simulated Solar
standard.
4
Radiation for Testing Purposes
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
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
and Durability and is the direct responsibility of Subcommittee G03.03 on the ASTM website.
3
Simulated and Controlled Exposure Tests. The last approved version of this historical standard is referenced on
Current edition approved June 1, 2013. Published August 2013. Originally www.astm.org.
4
approved in 1997. Last previous edition approved in 2005 as G155 – 05a. DOI: Available from American National Standards Institute, 11 W. 42d St., 13th
10.1520/G0155-13. 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
1

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G155 − 13
2.3 International Standards Organization Standards: 4.3 Comparisonofresultsobtainedfromspecimensexposed
ISO 1134 Paint and Varnishes—Artificial Weathering Expo- in the same model of apparatus should not be made unless
sure to Artific
...

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: G155 − 05a G155 − 13
Standard Practice for
Operating Xenon Arc Light Apparatus for Exposure of Non-
1
Metallic Materials
This standard is issued under the fixed designation G155; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope Scope*
1.1 This practice covers the basic principles and operating procedures for using xenon 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 G26,
which describes very specific designs for devices used for xenon-arc exposures. The apparatus described in Practice G26 is covered by this practice.
1.2 Test specimens are exposed to filtered xenon arc light under controlled environmental conditions. Different types of xenon
arc light sources and different filter combinations are described.
1.3 Specimen preparation and evaluation of the results are covered in ASTM 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. No other units of measurement are included in this 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 lamp(s), it shall be carried away from the test specimens and
operating personnel by an exhaust system.
1.6 This practice is technically similar to the following ISO documents: ISO 4892-2, ISO 11341, ISO 105 B02, ISO 105 B04,
ISO 105 B05, and ISO 105 B06.
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
G26 Practice for Operating Light-Exposure Apparatus (Xenon-Arc Type) With and Without Water for Exposure of Nonmetallic
3
Materials (Discontinued 2001) (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
1
This practice is under the jurisdiction of ASTM Committee G03 on Weathering and Durability and is the direct responsibility of Subcommittee G03.03 on Simulated
and Controlled Exposure Tests.
Current edition approved Oct. 1, 2005June 1, 2013. Published November 2005August 2013. Originally approved in 1997. Last previous edition approved in 2005 as
G155 – 05.G155 – 05a. DOI: 10.1520/G0155-05A.10.1520/G0155-13.
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.
*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 ----------------------
G155 − 13
2.2 CIE Standards:
CIE-Publ. No. 85: Recommendations for the Integrated Irradiance and the Spectral Distribution of Simulated Solar Radiation
4
for Testing Pu
...