ASTM G154-23

Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of 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 (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 This practice is not intended for corrosion testing of bare metals.  
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 This standard is technically similar to ISO 4892-3 and ISO 16474-3.  
1.8 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, health, and...

General Information

• Status: Published
• Publication Date: 31-Dec-2022
• ICS: 19.040 - Environmental testing
• Technical Committee: G03 - Weathering and Durability
• Drafting Committee: G03.03 - Simulated and Controlled Exposure Tests

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: G154 − 23
Standard Practice for
Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for
1
Exposure of 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 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
1.1 This practice is limited to the basic principles for
standard.
operating a fluorescent UV lamp and water apparatus; on its
1.7 This standard is technically similar to ISO 4892-3 and
own, it does not deliver a specific result.
ISO 16474-3.
1.2 Itisintendedtobeusedinconjunctionwithapracticeor
1.8 This standard does not purport to address all of the
method that defines specific exposure conditions for an appli-
safety concerns, if any, associated with its use. It is the
cation along with a means to evaluate changes in material
responsibility of the user of this standard to establish appro-
properties. This practice is intended to reproduce the weather-
priate safety, health, and environmental practices and deter-
ing effects that occur when materials are exposed to sunlight
mine the applicability of regulatory limitations prior to use.
(either direct or through window glass) and moisture as rain or
1.9 This international standard was developed in accor-
dew in actual usage. This practice is limited to the procedures
dance with internationally recognized principles on standard-
for obtaining, measuring, and controlling conditions of expo-
ization established in the Decision on Principles for the
sure.
Development of International Standards, Guides and Recom-
NOTE 1—Practice G151 describes general procedures to be used when
mendations issued by the World Trade Organization Technical
exposing nonmetallic materials in accelerated test devices that use
Barriers to Trade (TBT) Committee.
laboratory light sources.
NOTE 2—A number of exposure procedures are listed in an appendix;
2. Referenced Documents
however,thispracticedoesnotspecifytheexposureconditionsbestsuited
2
2.1 ASTM Standards:
for the material to be tested.
D5870 Practice for Calculating Property Retention Index of
1.3 Test specimens are exposed to fluorescent UV light
Plastics
under controlled environmental conditions. Different types of
D6631 Guide for Committee D01 for Conducting an Inter-
fluorescent UV lamp sources are described.
laboratory Study for the Purpose of Determining the
Precision of a Test Method
NOTE 3—In this standard, the terms UVlight and UVradiation are used
interchangeably.
G113 Terminology Relating to Natural andArtificial Weath-
ering Tests of Nonmetallic Materials
1.4 Specimen preparation and evaluation of the results are
G151 Practice for Exposing Nonmetallic Materials inAccel-
covered in ASTM methods or specifications for specific
erated Test Devices that Use Laboratory Light Sources
materials. General guidance is given in Practice G151 and
G177 Tables for Reference Solar Ultraviolet Spectral Distri-
ISO 4892-1.
butions: Hemispherical on 37° Tilted Surface
3
NOTE 4—General information about methods for determining the
2.2 ISO Standards:
changeinpropertiesafterexposureandreportingtheseresultsisdescribed
ISO 4582 Plastics—DeterminationoftheChangesofColour
in ISO 4582 and Practice D5870.
and Variations in Properties After Exposure to Daylight
1.5 Thispracticeisnotintendedforcorrosiontestingofbare Under Glass, Natural Weathering or Artificial Light
metals.
ISO 4892-1 Plastics—Methods of Exposure to Laboratory
Light Sources—Part 1, Guidance
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 Jan. 1, 2023. Published January 2023. Originally the ASTM website.
3
approved in 1997. Last previous edition approved in 2016 as G154 – 16. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/G0154-23. 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 19428-29
...

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 − 16 G154 − 23
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 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 This practice is not intended for corrosion testing of bare metals.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 This standard is technically similar to ISO 4892-3 and ISO 16474-3.
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 March 1, 2016Jan. 1, 2023. Published September 2016January 2023. Originally approved in 1997. Last previous edition approved in 20122016
as G154 – 12a.G154 – 16. DOI: 10.1520/G0154-16.10.1520/G0154-23.
*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 − 23
1.8 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.7 This standard is technically similar to ISO 4892-3 and ISO 16474-3.
1.9 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D5870 Practice for Calculating Property Retention Index of Plastics
D6631 Guide for Committee D01 for Conducting an Interlaboratory Study for the Purpose of Determining the Precision of a Test
Method
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
G177 Tables for Reference Solar Ultraviolet Spectral Distributions: Hemispherical on 37° Tilted Surface
3
2.2 ISO Standards:
ISO 4582 Plastics—Determination of the Changes of Colour and Variations in Properties After Exposure to Daylight Under
Glass, Natural Weathering or Artificial Light
ISO 4892-1 Plastics—Methods of Exposure to Laboratory Light
...