ASTM G147-17
(Practice)Standard Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
Standard Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
SIGNIFICANCE AND USE
4.1 Weathering is an inherently variable science due to the fact that weather itself is variable. In addition, there can be variability in results in artificial accelerated testing even when all devices are running identical exposure cycles. Therefore, it is essential to control all factors as much as possible in order to reduce the overall source of error.
4.2 Proper handling of specimens is extremely important for maintaining the integrity of the material being evaluated. Damage to specimens caused by improper handling and labeling can adversely affect the validity of the testing program, causing loss of money and time. Improper handling can introduce nonstandard procedures into the protocol which may be a significant source of variability, adversely affecting the overall precision of results obtained. Improper handling may also introduce a bias in the results obtained.
4.3 Changes to materials can occur even under a seemingly benign conditioning environment, especially if the specimen has already been exposed. Therefore it is necessary to minimize the number and length of non-testing periods in order that the exposure is the only cause of further changes.
SCOPE
1.1 This practice covers specimen preparation, identification, packing, shipping, handling, and conditioning before, during, and after natural and artificial weathering testing.
1.2 This practice includes details on the conditioning of specimens after exposure and before examination. This practice also covers long-term storage of file specimens.
1.3 Conditioning in this practice does not refer to the specific act of exposing the specimens to the weathering factors.
1.4 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.
Note 1: There is no equivalent ISO standard describing procedures for identification, shipping, conditioning, and handling of specimens intended for natural or artificial weathering tests. ISO 139 and ISO 291 describe procedures used for conditioning specimens prior to and during physical property testing.
1.5 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.
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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:G147 −17
Standard Practice for
Conditioning and Handling of Nonmetallic Materials for
1
Natural and Artificial Weathering Tests
This standard is issued under the fixed designation G147; 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* D1729 Practice for Visual Appraisal of Colors and Color
Differences of Diffusely-Illuminated Opaque Materials
1.1 This practice covers specimen preparation,
D1776 Practice for Conditioning and Testing Textiles
identification, packing, shipping, handling, and conditioning
D3924 Specification for Environment for Conditioning and
before, during, and after natural and artificial weathering
Testing Paint, Varnish, Lacquer, and Related Materials
testing.
3
(Withdrawn 2016)
1.2 This practice includes details on the conditioning of
E41 Terminology Relating To Conditioning
specimens after exposure and before examination. This prac-
G7 Practice for Atmospheric Environmental Exposure Test-
tice also covers long-term storage of file specimens.
ing of Nonmetallic Materials
1.3 Conditioning in this practice does not refer to the
G24 Practice for Conducting Exposures to Daylight Filtered
specific act of exposing the specimens to the weathering
Through Glass
factors.
G90 Practice for Performing Accelerated Outdoor Weather-
1.4 This standard does not purport to address all of the
ing of Nonmetallic Materials Using Concentrated Natural
safety concerns, if any, associated with its use. It is the
Sunlight
responsibility of the user of this standard to establish appro-
G113 Terminology Relating to Natural andArtificial Weath-
priate safety and health practices and determine the applica-
ering Tests of Nonmetallic Materials
bility of regulatory limitations prior to use.
G151 Practice for Exposing Nonmetallic Materials inAccel-
NOTE1—ThereisnoequivalentISOstandarddescribingproceduresfor erated Test Devices that Use Laboratory Light Sources
identification, shipping, conditioning, and handling of specimens intended
G152 Practice for Operating Open Flame Carbon Arc Light
for natural or artificial weathering tests. ISO 139 and ISO 291 describe
Apparatus for Exposure of Nonmetallic Materials
procedures used for conditioning specimens prior to and during physical
G153 Practice for Operating Enclosed Carbon Arc Light
property testing.
Apparatus for Exposure of Nonmetallic Materials
1.5 This international standard was developed in accor-
G154 Practice for Operating Fluorescent Ultraviolet (UV)
dance with internationally recognized principles on standard-
Lamp Apparatus for Exposure of Nonmetallic Materials
ization established in the Decision on Principles for the
G155 Practice for Operating XenonArc LightApparatus for
Development of International Standards, Guides and Recom-
Exposure of Non-Metallic Materials
mendations issued by the World Trade Organization Technical
4
Barriers to Trade (TBT) Committee.
2.2 Other Documents:
ISO 139 Textiles—Standard Atmosphere for Conditioning
2. Referenced Documents
and Testing
2
ISO 291 Plastics—Standard Atmospheres for Conditioning
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing and Testing
3. Terminology
1
This practice is under the jurisdiction ofASTM Committee G03 on Weathering
3.1 The definitions given in Terminologies E41 and G113
and Durability and is the direct responsibility of Subcommittee G03.01 on Joint
are applicable to this practice.
Weathering Projects.
Current edition approved June 1, 2017. Published June 2017. Originally
approved in 1996. Last previous edition approved in 2009 as G147 – 09. DOI:
10.1520/G0147-17.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The last approved version of this historical standard is referenced on
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.astm.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 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 ----------------------
G147−17
3.2 Unless otherwise stated, use of the term “specimens” in appearance. For some materials, specimens can be stacked
this practice refers to specim
...
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: G147 − 09 G147 − 17
Standard Practice for
Conditioning and Handling of Nonmetallic Materials for
1
Natural and Artificial Weathering Tests
This standard is issued under the fixed designation G147; 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 covers specimen preparation, identification, packing, shipping, handling, and conditioning before, during, and
after natural and artificial weathering testing.
1.2 This practice includes details on the conditioning of specimens after exposure and before examination. This practice also
covers long-term storage of file specimens.
1.3 Conditioning in this practice does not refer to the specific act of exposing the specimens to the weathering factors.
1.4 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.
NOTE 1—There is no equivalent ISO standard describing procedures for identification, shipping, conditioning, and handling of specimens intended for
natural or artificial weathering tests. ISO 139 and ISO 291 describe procedures used for conditioning specimens prior to and during physical property
testing.
1.5 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:
D618 Practice for Conditioning Plastics for Testing
D1729 Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
D1776 Practice for Conditioning and Testing Textiles
D3924 Specification for Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials (Withdrawn
3
2016)
E41 Terminology Relating To Conditioning
G7 Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials
G24 Practice for Conducting Exposures to Daylight Filtered Through Glass
G90 Practice for Performing Accelerated Outdoor Weathering of Nonmetallic Materials Using Concentrated Natural Sunlight
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
G152 Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials
G153 Practice for Operating Enclosed Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials
G154 Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials
G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
4
2.2 Other Documents:
ISO 139 Textiles—Standard Atmosphere for Conditioning and Testing
ISO 291 Plastics—Standard Atmospheres for Conditioning and Testing
1
This practice is under the jurisdiction of ASTM Committee G03 on Weathering and Durability and is the direct responsibility of Subcommittee G03.01 on Joint
Weathering Projects.
Current edition approved Feb. 1, 2009June 1, 2017. Published March 2009June 2017. Originally approved in 1996. Last previous edition approved in 20022009 as
G147 – 02.G147 – 09. DOI: 10.1520/G0147-09.10.1520/G0147-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. 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 ----------------------
G147 − 17
3. Terminology
3.1 The definitions given in Terminologies E41 and G
...
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