ASTM D4798/D4798M-10

Standard Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)

SIGNIFICANCE AND USE
Tests conducted according to this practice are used to compare the weathering characteristics of bituminous materials versus a control material of known outdoor durability. It is not possible to establish a single relationship that is applicable to all materials between time in accelerated tests conducted according to this practice and time in natural weathering because (1) there are geographical climatic variations, local weather variations, and variations in local pollutants, and (2) the relation between accelerated and natural weathering is material dependent with differences in acceleration factors between materials as well as for different formulations of the same material. Guide G141 provides guidance regarding variability in outdoor and accelerated weathering tests and about the use of control materials.  
Note 1—It is recommended that outdoor weathering be used to validate the laboratory accelerated test in terms of performance ranking.
Note 2—This practice can be used for other than bituminous materials, but the significance and use have not been evaluated.
SCOPE
1.1 This practice covers test conditions and procedures for xenon-arc exposures according to Practices G151 and G155 for bituminous roofing and waterproofing materials that have a minimum softening point of approximately 95°C [200°F] as determined by Test Method D36. (Also see Terminology G113.)
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3  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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2010
• ICS: 75.140 - Waxes, bituminous materials and other petroleum products
• ICS: 91.100.50 - Binders. Sealing materials
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.02 - Steep Roofing Products and Assemblies

Relations

• Replaces: ASTM D4798/D4798M-09 - Standard Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)
• Effective Date: 01-Jul-2010
• Replaced By: ASTM D4798/D4798M-11 - Standard Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)
• Effective Date: 01-Jan-2011
• Referred By: ASTM D6694/D6694M-15(2023) - Standard Specification for Liquid-Applied Silicone Coating Used in Spray Polyurethane Foam Roofing Systems
• Effective Date: 01-Jul-2010
• Referred By: ASTM D2824/D2824M-18 - Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, and Fibered without Asbestos
• Effective Date: 01-Jul-2010
• Referred By: ASTM D6947/D6947M-16(2023) - Standard Specification for Liquid Applied Moisture Cured Polyurethane Coating Used in Spray Polyurethane Foam Roofing System
• Effective Date: 01-Jul-2010
• Referred By: ASTM D1670/D1670M-11(2023) - Standard Test Method for Failure End Point in Accelerated and Outdoor Weathering of Bituminous Materials
• Effective Date: 01-Jul-2010
• Referred By: ASTM D6083/D6083M-21 - Standard Specification for Liquid-Applied Acrylic Coating Used in Roofing
• Effective Date: 01-Jul-2010
• Referred By: ASTM D6630/D6630M-16(2022) - Standard Guide for Low-Slope Insulated Roof Membrane Assembly Performance
• Effective Date: 01-Jul-2010
• Referred By: ASTM D5147/D5147M-18 - Standard Test Methods for Sampling and Testing Modified Bituminous Sheet Material
• Effective Date: 01-Jul-2010
• Referred By: ASTM D8257/D8257M-22 - Standard Specification for Mechanically Attached Polymeric Roof Underlayment Used in Steep Slope Roofing
• Effective Date: 01-Jul-2010
• Referred By: ASTM D2643/D2643M-21 - Standard Specification for Prefabricated Bituminous Geomembrane Used as Canal and Ditch Liner (Exposed Type)
• Effective Date: 01-Jul-2010

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:D4798/D4798M–10
Standard Practice for
Accelerated Weathering Test Conditions and Procedures for
1
Bituminous Materials (Xenon-Arc Method)
This standard is issued under the fixed designation D4798/D4798M; 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 G147 Practice for Conditioning and Handling of Nonmetal-
lic Materials for Natural and Artificial Weathering Tests
1.1 This practice covers test conditions and procedures for
G151 Practice for Exposing Nonmetallic Materials in Ac-
xenon-arcexposuresaccordingtoPracticesG151andG155for
celerated Test Devices that Use Laboratory Light Sources
bituminous roofing and waterproofing materials that have a
G155 PracticeforOperatingXenonArcLightApparatusfor
minimum softening point of approximately 95°C [200°F] as
Exposure of Non-Metallic Materials
determined by Test Method D36. (Also see Terminology
G169 Guide forApplication of Basic Statistical Methods to
G113.)
Weathering Tests
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
3. Summary of Test Method
each system may not be exact equivalents; therefore, each
3.1 Thin films of bitumen are uniformly applied to alumi-
system shall be used independently of the other. Combining
num panels. Shingles and similar products are cut to size and
values from the two systems may result in non-conformance
exposed to specified cycles of temperature, light, and water. A
with the standard.
choice of two test cycles is given along with options for
1.3 This standard does not purport to address all of the
determining the period of exposure and evaluating results.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Significance and Use
priate safety and health practices and determine the applica-
4.1 Tests conducted according to this practice are used to
bility of regulatory limitations prior to use.
comparetheweatheringcharacteristicsofbituminousmaterials
versus a control material of known outdoor durability. It is not
2. Referenced Documents
2 possible to establish a single relationship that is applicable to
2.1 ASTM Standards:
all materials between time in accelerated tests conducted
D36 Test Method for Softening Point of Bitumen (Ring-
according to this practice and time in natural weathering
and-Ball Apparatus)
because (1) there are geographical climatic variations, local
D1669 Practice for Preparation of Test Panels for Acceler-
weather variations, and variations in local pollutants, and (2)
ated and Outdoor Weathering of Bituminous Coatings
the relation between accelerated and natural weathering is
D1670 Test Method for Failure End Point in Accelerated
material dependent with differences in acceleration factors
and Outdoor Weathering of Bituminous Materials
between materials as well as for different formulations of the
G113 TerminologyRelatingtoNaturalandArtificialWeath-
same material. Guide G141 provides guidance regarding vari-
ering Tests of Nonmetallic Materials
ability in outdoor and accelerated weathering tests and about
G141 Guide forAddressing Variability in Exposure Testing
the use of control materials.
of Nonmetallic Materials
NOTE 1—It is recommended that outdoor weathering be used to
validate the laboratory accelerated test in terms of performance ranking.
1
ThispracticeisunderthejurisdictionofASTMCommitteeD08onRoofingand
NOTE 2—This practice can be used for other than bituminous materials,
Waterproofing and is the direct responsibility of Subcommittee D08.02 on Steep
but the significance and use have not been evaluated.
Roofing Products and Assemblies.
Current edition approved July 1, 2010. Published January 2011. Originally
5. Apparatus
approved in 1988. Last previous edition approved in 2009 as D4798/D4798M – 09.
DOI: 10.1520/D4798_D4798M-10.
5.1 The xenon-arc apparatus used shall conform to the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
requirements defined in Practices G151 and G155.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.2 Filters—Daylight filter as described in Practice G155.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D4798/D4798M–10
5.3 Radiometer—The use of a radiometer to monitor and specified, place specimens in an exposure area where irradi-
control th
...

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:D4798/D4798M–09 Designation:D4798/D4798M–10
Standard Practice for
Accelerated Weathering Test Conditions and Procedures for
1
Bituminous Materials (Xenon-Arc Method)
This standard is issued under the fixed designation D4798/D4798M; 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 test conditions and procedures for xenon-arc exposures according to Practices G151 and G155 for
bituminous roofing and waterproofing materials that have a minimum softening point of approximately 95°C [200°F] as
determined by Test Method D36. (Also see Terminology G113.)
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.3 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D36 Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
D1669 Practice for Preparation of Test Panels for Accelerated and Outdoor Weathering of Bituminous Coatings
D1670 Test Method for Failure End Point in Accelerated and Outdoor Weathering of Bituminous Materials
G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
G141 Guide for Addressing Variability in Exposure Testing of Nonmetallic Materials
G147 Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
G155 PracticeforOperatingXenonArcLightApparatusforExposureofNon-MetallicMaterialsPracticeforOperatingXenon
Arc Light Apparatus for Exposure of Non-Metallic Materials
G169 Guide for Application of Basic Statistical Methods to Weathering Tests
3. Summary of Test Method
3.1 Thin films of bitumen are uniformly applied to aluminum panels. Shingles and similar products are cut to size and exposed
to specified cycles of temperature, light, and water. A choice of two test cycles is given along with options for determining the
period of exposure and evaluating results.
4. Significance and Use
4.1It is not possible to establish a precise correlation between accelerated and natural weathering because (
4.1 Testsconductedaccordingtothispracticeareusedtocomparetheweatheringcharacteristicsofbituminousmaterialsversus
a control material of known outdoor durability. It is not possible to establish a single relationship that is applicable to all materials
between time in accelerated tests conducted according to this practice and time in natural weathering because (1) there are
geographical climatic variations, local weather variations, and variations in local pollutants, and (2) the relation between
accelerated and natural weathering is material dependent with differences in acceleration factors between materials as well as for
different formulations of the same material. This weathering apparatus and procedure are used for comparing the weathering
1
This practice is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.02 on Prepared
Roofings, Shingles and Siding Materials.
Current edition approved Aug. 1, 2009. Published August 2009. Originally approved in 1988. Last previous edition approved in 2004 as D4798–04. DOI:
10.1520/D4798_D4798M-09.on Steep Roofing Products and Assemblies.
Current edition approved July 1, 2010. Published January 2011. Originally approved in 1988. Last previous edition approved in 2009 as D4798/D4798M–09. DOI:
10.1520/D4798_D4798M-10.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, U
...