ASTM D2898-10(2017)
(Practice)Standard Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing
Standard Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing
SIGNIFICANCE AND USE
4.1 This practice describes different methods of exposing fire-retardant-treated wood products or assemblies to controlled accelerated weathering or conditioning.
4.2 The conditioning simulates effects of leaching, drying, temperature, and, in two methods, UV light.
4.3 Method A is the method normally specified for regulatory purposes when testing fire-retardant-treated wood that is intended for exterior applications.
SCOPE
1.1 This practice addresses the durability of a fire-retardant treatment of wood products by exposure to accelerated cycles of wetting, drying, or ultraviolet (UV) exposure, or combination thereof, prior to evaluation by a fire response test. Four conditioning methods are described.
1.2 This practice is applicable to wood products that have been treated with fire-retardant chemicals by pressure impregnation.
1.3 The test specimens are to be in the form of, or suitable for fabrication into, test specimens, such as those described in Test Methods E84, E108, and E1354 and other standard test methods for evaluating the fire performance of fire-retardant-treated wood products.
1.4 The text of these methods references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of these test methods.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.
General Information
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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: D2898 − 10 (Reapproved 2017)
Standard Practice for
Accelerated Weathering of Fire-Retardant-Treated Wood for
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Fire Testing
This standard is issued under the fixed designation D2898; 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 E84 Test Method for Surface Burning Characteristics of
Building Materials
1.1 This practice addresses the durability of a fire-retardant
E108 Test Methods for Fire Tests of Roof Coverings
treatment of wood products by exposure to accelerated cycles
E176 Terminology of Fire Standards
of wetting, drying, or ultraviolet (UV) exposure, or combina-
E1354 Test Method for Heat and Visible Smoke Release
tion thereof, prior to evaluation by a fire response test. Four
Rates for Materials and Products Using an Oxygen Con-
conditioning methods are described.
sumption Calorimeter
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1.2 This practice is applicable to wood products that have
2.2 ICC Evaluation Service Acceptance Criteria:
been treated with fire-retardant chemicals by pressure impreg-
AC 107 Classified Wood Roof Systems
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nation.
2.3 UL Standards:
1.3 The test specimens are to be in the form of, or suitable UL 790 Tests for Fire Resistance of Roof Covering Material
for fabrication into, test specimens, such as those described in
3. Terminology
Test Methods E84, E108, and E1354 and other standard test
methods for evaluating the fire performance of fire-retardant- 3.1 Definitions—Definition used in this practice are in
treated wood products. accordance withTerminologies D9 and E176, unless otherwise
indicated.
1.4 Thetextofthesemethodsreferencesnotesandfootnotes
that provide explanatory material. These notes and footnotes
4. Significance and Use
(excluding those in tables and figures) shall not be considered
4.1 This practice describes different methods of exposing
as requirements of these test methods.
fire-retardant-treated wood products or assemblies to con-
1.5 The values stated in inch-pound units are to be regarded
trolled accelerated weathering or conditioning.
as standard. The values given in parentheses are mathematical
4.2 The conditioning simulates effects of leaching, drying,
conversions to SI units that are provided for information only
temperature, and, in two methods, UV light.
and are not considered standard.
4.3 Method A is the method normally specified for regula-
1.6 This standard does not purport to address all of the
tory purposes when testing fire-retardant-treated wood that is
safety concerns, if any, associated with its use. It is the
intended for exterior applications.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5. Apparatus
bility of regulatory limitations prior to use.
5.1 The test apparatus shall be capable of subjecting the
2. Referenced Documents
specimen uniformly to the test conditions described in Section
2
7.
2.1 ASTM Standards:
D9 Terminology Relating to Wood and Wood-Based Prod-
5.2 No special means of protecting the specimen back and
ucts
edges are required, but water shall not impinge directly on
those surfaces which are not exposed either to the weather in
the assembled form, or to fire in the subsequent test. Water
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This practice is under the jurisdiction of ASTM Committee D07 on Wood and
spray nozzles shall be provided and arranged so as to distribute
are the direct responsibility of Subcommittee D07.07 on Fire Performance ofWood.
Current edition approved Feb. 1, 2017. Published March 2017. Originally water evenly over the exposed specimen surface.
approved in 1970. Last previous edition approved in 2010 as D2898 – 10. DOI:
10.1520/D2898-10R17.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from ICC Evaluation Service, Inc., 5360 Workman Mill Road,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Whittier, CA 90601, http://icc-es.org.
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Standards volume information, refer to the standard’s Document Summary page on Available from Underwriters Laboratories, Inc., 333 Pfingsten Road,
the ASTM website. Northbrook, IL 60062, http://www.ul.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2898 − 10 (2017)
5.3 Accompany drying cycles with heating that is thermo- 7. Exposure Cycle
statically controlled. The controlling temperature shall be the
7.1 Method
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