ASTM D4799/D4799M-17
(Practice)Standard Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Fluorescent UV, Water Spray, and Condensation Method)
Standard Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Fluorescent UV, Water Spray, and Condensation Method)
SIGNIFICANCE AND USE
4.1 This weathering apparatus is used for comparing the weathering characteristics of bituminous materials against a control material for which the outdoor weathering characteristics are known. It is not possible to establish a precise correlation between accelerated and 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. Acceleration factors differ between materials as well as between formulations of the same material. Guide G141 provides guidance regarding this issue.
Note 1: This practice can be used for other than bituminous materials, but the significance and use have not been evaluated.
SCOPE
1.1 This practice describes test conditions and procedures for fluorescent UV and condensation exposures conducted according to Practices G151 and G154 for bituminous roofing and waterproofing materials. (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.
1.4 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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Designation: D4799/D4799M − 17
Standard Practice for
Accelerated Weathering Test Conditions and Procedures for
Bituminous Materials (Fluorescent UV, Water Spray, and
1
Condensation Method)
This standard is issued under the fixed designation D4799/D4799M; 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 D1670/D1670M Test Method for Failure End Point in Ac-
celerated and Outdoor Weathering of Bituminous Materi-
1.1 This practice describes test conditions and procedures
als
for fluorescent UV and condensation exposures conducted
G113 Terminology Relating to Natural and Artificial Weath-
according to Practices G151 and G154 for bituminous roofing
ering Tests of Nonmetallic Materials
and waterproofing materials. (See Terminology G113.)
G141 Guide for Addressing Variability in Exposure Testing
1.2 The values stated in either SI units or inch-pound units
of Nonmetallic Materials
are to be regarded separately as standard. The values stated in
G147 Practice for Conditioning and Handling of Nonmetal-
each system may not be exact equivalents; therefore, each
lic Materials for Natural and Artificial Weathering Tests
system shall be used independently of the other. Combining
G151 Practice for Exposing Nonmetallic Materials in Accel-
values from the two systems may result in non-conformance
erated Test Devices that Use Laboratory Light Sources
with the standard.
G154 Practice for Operating Fluorescent Ultraviolet (UV)
1.3 This standard does not purport to address all of the Lamp Apparatus for Exposure of Nonmetallic Materials
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Summary of Test Method
priate safety and health practices and determine the applica-
3.1 Thin films of bitumen are uniformly applied to alumi-
bility of regulatory limitations prior to use.
num panels. Shingles and similar materials are cut to size and
1.4 This international standard was developed in accor-
exposed to specified cycles of temperature, light, and water. A
dance with internationally recognized principles on standard-
choice of six test cycles is given along with options for
ization established in the Decision on Principles for the
determining the period of exposure and evaluating results.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4. Significance and Use
Barriers to Trade (TBT) Committee.
4.1 This weathering apparatus is used for comparing the
weathering characteristics of bituminous materials against a
2. Referenced Documents
2 control material for which the outdoor weathering characteris-
2.1 ASTM Standards:
tics are known. It is not possible to establish a precise
D36/D36M Test Method for Softening Point of Bitumen
correlation between accelerated and natural weathering be-
(Ring-and-Ball Apparatus)
cause (1) there are geographical climatic variations, local
D1669/D1669M Practice for Preparation of Test Panels for
weather variations, and variations in local pollutants, and (2)
Accelerated and Outdoor Weathering of Bituminous Coat-
the relation between accelerated and natural weathering is
ings
material dependent. Acceleration factors differ between mate-
rials as well as between formulations of the same material.
Guide G141 provides guidance regarding this issue.
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 Steep
NOTE 1—This practice can be used for other than bituminous materials,
Roofing Products and Assemblies.
but the significance and use have not been evaluated.
Current edition approved June 1, 2017. Published July 2017. Originally approved
ɛ1
in 1988. Last previous edition approved in 2013 as D4799/D4799M – 08 (2013) .
5. Apparatus
DOI: 10.1520/D4799_D4799M-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 The fluorescent UV and condensation apparatus used
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
shall conform to the requirements defined in Practices G151
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. and G154.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4799/D4799M − 17
5.2 Lamps—The lamps shall be fluorescent UVA-340 lamps Practice G154, Section 9.5, to ensure equal radiant exposure on
as described in 6.1.3.1 o
...
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.
´1
Designation: D4799/D4799M − 08 (Reapproved 2013) D4799/D4799M − 17
Standard Practice for
Accelerated Weathering Test Conditions and Procedures for
Bituminous Materials (Fluorescent UV, Water Spray, and
1
Condensation Method)
This standard is issued under the fixed designation D4799/D4799M; 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
ε NOTE—Units information was editorially corrected in July 2013.
1. Scope
1.1 This practice describes test conditions and procedures for fluorescent UV and condensation exposures conducted according
to Practices G151 and G154 for bituminous roofing and waterproofing materials that have a minimum softening point of
approximately 95°C [200°F] as determined by Test Method materials. (See 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.
1.4 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:
D36D36/D36M Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
D1669D1669/D1669M Practice for Preparation of Test Panels for Accelerated and Outdoor Weathering of Bituminous Coatings
D1670D1670/D1670M 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
G154 Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials
3. Summary of Test Method
3.1 Thin films of bitumen are uniformly applied to aluminum panels. Shingles and similar materials are cut to size and exposed
to specified cycles of temperature, light, and water. A choice of threesix test cycles is given along with options for determining
the period of exposure and evaluating results.
4. Significance and Use
4.1 This weathering apparatus is used for comparing the weathering characteristics of bituminous materials against a control
material for which the outdoor weathering characteristics are known. It is not possible to establish a precise correlation between
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 Steep Roofing
Products and Assemblies.
Current edition approved July 1, 2013June 1, 2017. Published July 2013July 2017. Originally approved in 1988. Last previous edition approved in 20082013 as
ɛ1
D4799 – 08.D4799/D4799M – 08 (2013) . DOI: 10.1520/D4799_D4799M-08R13E01.10.1520/D4799_D4799M-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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D4799/D4799M − 17
accelerated and 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. Accelerati
...
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