ASTM G113-09

This document is not anASTM standard and is intended only to provide the user of anASTM 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:G113–08 Designation: G 113 – 09
Standard Terminology
Relating to Natural and Artificial Weathering Tests of
1
Nonmetallic Materials
This standard is issued under the fixed designation G113; 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
1.1 This terminology standard covers terms that relate to the durability testing of Nonmetallic Materials using natural and
artificial weathering exposure techniques.
1.2 It is the intent of this terminology standard to include those weathering terms in wide use in ASTM for which standard
definitions appear desirable.
2. Referenced Documents
2
2.1 ASTM Standards:
D9 Terminology Relating to Wood and Wood-Based Products
D4023 Terminology Relating to Humidity Measurements
E41 Terminology Relating To Conditioning
E772 Terminology Relating to Solar Energy Conversion
E973 Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic
Reference Cell
G84 Practice for Measurement of Time-of-Wetness on Surfaces Exposed to Wetting Conditions as inAtmospheric Corrosion
Testing
G90 Practice for PerformingAccelerated Outdoor Weathering of Nonmetallic Materials Using Concentrated Natural Sunlight
3
2.2 AATCC Method:
16 Colorfastness to Light
4
2.3 ANSI Standards:
ANSI/NCSL Z540-2-1997 American National Standard for Expressing Uncertainty—U.S. Guide to the Expression of
Uncertainty in Measurement
ISO 9370 Plastics -- Instrumental Determination of Radiant Exposure in Weathering Tests -- General Guidance and Basic Test
Method
3. Significance and Use
3.1 This terminology is not intended to supersede the requirements of similar definitions in certain other documents, but is
intended to provide a listing of terms that are in current widespread usage, and their context in relation to weathering.
4. Terminology
4.1 Definitions:
accelerated outdoor weathering, n—outdoor weathering using the sun as the source of irradiance, and where the rate of
deterioration is accelerated over that of the in-service exposure position increasing one or more of the influencing parameters.
acceleration factor, n—theratioofexposuretimerequiredtoproduceaspecifiedamountofchangeinamaterialbyoneexposure
test divided by the exposure time required to produce the same change by another exposure test.
DISCUSSION—Accelerationfactorsmustbeusedwithgreatcautionbecausetheyvarybetweenmaterials(includingdifferentformulationsofthesame
1
This terminology is under the jurisdiction of ASTM Committee G03 on Weathering and Durability and is the direct responsibility of Subcommittee G03.92 on
Terminology.
´1
Current edition approved Aug. 1, 2008. Published October 2008. Originally approved in 1992. Last previous edition approved in 2006 as G113–06 .
Current edition approved June 15, 2009. Published August 2009. Originally approved in 1992. Last previous edition approved in 2008 as G113–08.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Association of Textile Chemists and Colorists (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709, http://www.aatcc.org.
4
Available from National Conference of Standards Laboratories, 1800 30th St., Suite 305B, Boulder, CO 80301.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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G113–09
material) and are strongly dependent on the exposure conditions and variability of both the natural and laboratory accelerated exposures.Acceleration
factorsmayalsovarydependingonthelevelofmaterialpropertychangeusedtodeterminetheaccelerationfactor.Donotratioirradianceinlaboratory
acceleratedteststoirradianceinoutdoorexposures,oruseequivalentradiantexposurestoestimatetimetofailinoutdoorexposures.Thesecalculations
ignore differences in temperature and moisture between the accelerated test and exterior exposures, and in the spectral power distributions of the
laboratory light source and sunlight.
actinic radiation, n—the spectral region(s) of a light source responsible for the photodegradation of a particular material.
ambient temperature, n—the exist
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:G113–08 Designation: G 113 – 09
Standard Terminology
Relating to Natural and Artificial Weathering Tests of
1
Nonmetallic Materials
This standard is issued under the fixed designation G113; 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
1.1 This terminology standard covers terms that relate to the durability testing of Nonmetallic Materials using natural and
artificial weathering exposure techniques.
1.2 It is the intent of this terminology standard to include those weathering terms in wide use in ASTM for which standard
definitions appear desirable.
2. Referenced Documents
2
2.1 ASTM Standards:
D9 Terminology Relating to Wood and Wood-Based Products
D4023 Terminology Relating to Humidity Measurements
E41 Terminology Relating To Conditioning
E772 Terminology Relating to Solar Energy Conversion
E973 Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic
Reference Cell
G84 Practice for Measurement of Time-of-Wetness on Surfaces Exposed to Wetting Conditions as inAtmospheric Corrosion
Testing
G90 Practice for PerformingAccelerated Outdoor Weathering of Nonmetallic Materials Using Concentrated Natural Sunlight
3
2.2 AATCC Method:
16 Colorfastness to Light
4
2.3 ANSI Standards:
ANSI/NCSL Z540-2-1997 American National Standard for Expressing Uncertainty—U.S. Guide to the Expression of
Uncertainty in Measurement
ISO 9370 Plastics -- Instrumental Determination of Radiant Exposure in Weathering Tests -- General Guidance and Basic Test
Method
3. Significance and Use
3.1 This terminology is not intended to supersede the requirements of similar definitions in certain other documents, but is
intended to provide a listing of terms that are in current widespread usage, and their context in relation to weathering.
4. Terminology
4.1 Definitions:
accelerated outdoor weathering, n—outdoor weathering using the sun as the source of irradiance, and where the rate of
deterioration is accelerated over that of the in-service exposure position increasing one or more of the influencing parameters.
acceleration factor, n—theratioofexposuretimerequiredtoproduceaspecifiedamountofchangeinamaterialbyoneexposure
test divided by the exposure time required to produce the same change by another exposure test.
DISCUSSION—Accelerationfactorsmustbeusedwithgreatcautionbecausetheyvarybetweenmaterials(includingdifferentformulationsofthesame
1
This terminology is under the jurisdiction of ASTM Committee G03 on Weathering and Durability and is the direct responsibility of Subcommittee G03.92 on
Terminology.
´1
Current edition approved Aug. 1, 2008. Published October 2008. Originally approved in 1992. Last previous edition approved in 2006 as G113–06 .
Current edition approved June 15, 2009. Published August 2009. Originally approved in 1992. Last previous edition approved in 2008 as G113–08.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Association of Textile Chemists and Colorists (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709, http://www.aatcc.org.
4
Available from National Conference of Standards Laboratories, 1800 30th St., Suite 305B, Boulder, CO 80301.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
G113–09
material) and are strongly dependent on the exposure conditions and variability of both the natural and laboratory accelerated exposures.Acceleration
factorsmayalsovarydependingonthelevelofmaterialpropertychangeusedtodeterminetheaccelerationfactor.Donotratioirradianceinlaboratory
acceleratedteststoirradianceinoutdoorexposures,oruseequivalentradiantexposurestoestimatetimetofailinoutdoorexposures.Thesecalculations
ignore differences in temperature and moisture between the accelerated test and exterior exposures, and in the spectral power distributions of the
laboratory light source and sunlight.
actinic radiation, n—the spectral region(s) of a light source responsible for the photodegradation of a particular material.
ambient temperature, n—the exist
...