ASTM G154-16

Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials

SIGNIFICANCE AND USE
5.1 The use of this apparatus is intended to induce property changes consistent with the end use conditions, including the effects of the UV portion of sunlight, moisture, and heat. Typically, these exposures would include moisture in the form of condensing humidity. 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. (Warning—Refer to Practice G151 for full cautionary guidance applicable to all laboratory weathering devices.)  
5.2 This practice provides general procedures for operating fluorescent UV lamp weathering devices that allow for a wide range of exposure conditions. 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 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. Generally, two controls are recommended: one known to have poor durability and one known to have 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.  
5.2.2 Comparison of results obtained from specimens exposed in the same model of apparatus should not be made unless reproducibility has been established among devices for the material to be tested.  
5.2.3 Comparison of results obtained from specimens exposed in different models of apparatus should not be made unless correlation has been established among devices for the material to be tested.
Note 5: See Guide D6631 for guidance.
SCOPE
1.1 This practice is limited to the basic principles for operating a fluorescent UV lamp and water apparatus; on its own, it does not deliver a specific result.  
1.2 It is intended to be used in conjunction with a practice or method that defines specific exposure conditions for an application along with a means to evaluate changes in material properties. This practice is 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 usage. This practice is limited to the procedures for obtaining, measuring, and controlling conditions of exposure.
Note 1: Practice G151 describes general procedures to be used when exposing nonmetallic materials in accelerated test devices that use laboratory light sources.
Note 2: 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.  
1.3 Test specimens are exposed to fluorescent UV light under controlled environmental conditions. Different types of fluorescent UV lamp sources are described.
Note 3: In this standard, the terms UV light and UV radiation are used interchangeably.  
1.4 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.
Note 4: General information about methods for determining the change in properties after exposure and reporting these results is described in ISO 4582 and Practice D5870.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 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.  
1.7 This standard is technically similar to ISO 4892-3 an...

General Information

• Status: Historical
• Publication Date: 29-Feb-2016
• 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: G154 − 16
Standard Practice for
Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for
1
Exposure of Nonmetallic Materials
This standard is issued under the fixed designation G154; 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 standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This practice is limited to the basic principles for
responsibility of the user of this standard to establish appro-
operating a fluorescent UV lamp and water apparatus; on its
priate safety and health practices and determine the applica-
own, it does not deliver a specific result.
bility of regulatory limitations prior to use.
1.2 Itisintendedtobeusedinconjunctionwithapracticeor
1.7 This standard is technically similar to ISO 4892-3 and
method that defines specific exposure conditions for an appli-
ISO 16474-3.
cation along with a means to evaluate changes in material
properties. This practice is intended to reproduce the weather- 2. Referenced Documents
ing effects that occur when materials are exposed to sunlight 2
2.1 ASTM Standards:
(either direct or through window glass) and moisture as rain or
D5870 Practice for Calculating Property Retention Index of
dew in actual usage. This practice is limited to the procedures
Plastics
for obtaining, measuring, and controlling conditions of expo-
D6631 Guide for Committee D01 for Conducting an Inter-
sure.
laboratory Study for the Purpose of Determining the
Precision of a Test Method
NOTE 1—Practice G151 describes general procedures to be used when
exposing nonmetallic materials in accelerated test devices that use G113 Terminology Relating to Natural andArtificial Weath-
laboratory light sources.
ering Tests of Nonmetallic Materials
NOTE 2—A number of exposure procedures are listed in an appendix;
G151 Practice for Exposing Nonmetallic Materials inAccel-
however,thispracticedoesnotspecifytheexposureconditionsbestsuited
erated Test Devices that Use Laboratory Light Sources
for the material to be tested.
G177 Tables for Reference Solar Ultraviolet Spectral Distri-
1.3 Test specimens are exposed to fluorescent UV light
butions: Hemispherical on 37° Tilted Surface
under controlled environmental conditions. Different types of
3
2.2 ISO Standards:
fluorescent UV lamp sources are described.
ISO 4582 Plastics—DeterminationoftheChangesofColour
NOTE 3—In this standard, the terms UVlight and UVradiation are used and Variations in Properties After Exposure to Daylight
interchangeably.
Under Glass, Natural Weathering or Artificial Light
ISO 4892-1 Plastics—Methods of Exposure to Laboratory
1.4 Specimen preparation and evaluation of the results are
Light Sources—Part 1, Guidance
covered in ASTM methods or specifications for specific
ISO 4892-3 Plastics—Methods of Exposure to Laboratory
materials. General guidance is given in Practice G151 and
Light Sources—Part 3, Fluorescent UV lamps
ISO 4892-1.
ISO16474-3 PaintsandVarnishes—MethodsofExposureto
NOTE 4—General information about methods for determining the
LaboratoryLightSources—Part3:FluorescentUVLamps
changeinpropertiesafterexposureandreportingtheseresultsisdescribed
in ISO 4582 and Practice D5870.
3. Terminology
1.5 The values stated in SI units are to be regarded as
3.1 Definitions—ThedefinitionsgiveninTerminologyG113
standard. No other units of measurement are included in this
are applicable to this practice.
standard.
3.2 Definitions of Terms Specific to This Standard—As used
1 2
This practice is under the jurisdiction ofASTM Committee G03 on Weathering For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Durability and is the direct responsibility of Subcommittee G03.03 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Simulated and Controlled Exposure Tests. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 1, 2016. Published September 2016. Originally the ASTM website.
3
approved in 1997. Last previous edition approved in 2012 as G154 – 12a. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/G0154-16. 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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G154 − 16
NOTE 5—See Guide D6631 for guidance.
in this practice, the term sunlight is identical to the terms
daylight an
...

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: G154 − 12a G154 − 16
Standard Practice for
Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for
1
Exposure of Nonmetallic Materials
This standard is issued under the fixed designation G154; 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*
1.1 This practice is limited to the basic principles for operating a fluorescent UV lamp and water apparatus; on its own, it does
not deliver a specific result.
1.2 This practice covers the basic principles and operating procedures for using fluorescent UV light, and water apparatus It is
intended to be used in conjunction with a practice or method that defines specific exposure conditions for an application along with
a means to evaluate changes in material properties. This practice is 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 usage. 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 Practicegeneral
procedures to be used when exposing nonmetallic materials in accelerated test devices that use G53, which describes very specific designs for devices
used for fluorescent UV exposures. The apparatus described in Practice laboratory light sources.G53 is covered by this practice.
NOTE 2—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.
1.3 Test specimens are exposed to fluorescent UV light under controlled environmental conditions. Different types of fluorescent
UV lightlamp sources are described.
NOTE 3—In this standard, the terms UV light and UV radiation are used interchangeably.
1.4 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 ISO 4582.
NOTE 4—General information about methods for determining the change in properties after exposure and reporting these results is described in
ISO 4582 and Practice D5870.
1.5 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.
1.6 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.
1.7 This standard is technically similar to ISO 4892-3 and ISO DIS 11507.16474-3.
2. Referenced Documents
2
2.1 ASTM Standards:
D3980D5870 Practice for Interlaboratory Testing of Paint and Related MaterialsCalculating Property Retention Index of Plastics
(Withdrawn 1998)
E691D6631 Practice for Guide for Committee D01 for Conducting an Interlaboratory Study to Determine the for the Purpose
of Determining the Precision of a Test Method
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 Dec. 15, 2012March 1, 2016. Published December 2012September 2016. Originally approved in 1997. Last previous edition approved in
20062012 as G154 – 06.G154 – 12a. DOI: 10.1520/G0154-12a.10.1520/G0154-16.
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.
*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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