ASTM D2898-08
(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
This practice describes different methods of exposing fire-retardant-treated wood products or assemblies to controlled accelerated weathering or conditioning.
The conditioning simulates effects of leaching, drying, temperature, and, in two methods, ultraviolet (UV) light.
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 covers the durability of a fire-retardant treatment of wood under exposure to accelerated weathering. Four conditioning methods are described. Methods are suitable for application to a test specimen prior to subjecting that specimen to an appropriate fire test.
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 E 84, E 108, and E 1354 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.
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Designation:D2898–08
Standard Practice for
Accelerated Weathering of Fire-Retardant-Treated Wood for
1
Fire Testing
This standard is issued under the fixed designation D 2898; 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 E 108 Test Methods for Fire Tests of Roof Coverings
E 176 Terminology of Fire Standards
1.1 This practice covers the durability of a fire-retardant
E 1354 Test Method for Heat and Visible Smoke Release
treatment of wood under exposure to accelerated weathering.
Rates for Materials and Products Using an Oxygen Con-
Four conditioning methods are described. Methods are suitable
sumption Calorimeter
for application to a test specimen prior to subjecting that
3
2.2 ICC Evaluation Service Guidelines:
specimen to an appropriate fire test.
EG 107 Classified Wood Roof Systems
1.2 This practice is applicable to wood products that have
4
2.3 UL Standards:
been treated with fire-retardant chemicals by pressure impreg-
UL 790 TestsforFireResistanceofRoofCoveringMaterial
nation.
1.3 The test specimens are to be in the form of, or suitable
3. Terminology
for fabrication into, test specimens, such as those described in
3.1 Definitions—Definition used in this practice are in
Test MethodsE84, E 108, and E 1354 and other standard test
accordance with Terminologies D9 and E 176, unless other-
methods for evaluating the fire performance of fire-retardant-
wise indicated.
treated wood products.
1.4 Thetextofthesemethodsreferencesnotesandfootnotes
4. Significance and Use
that provide explanatory material. These notes and footnotes
4.1 This practice describes different methods of exposing
(excluding those in tables and figures) shall not be considered
fire-retardant-treated wood products or assemblies to con-
as requirements of these test methods.
trolled accelerated weathering or conditioning.
1.5 The values stated in inch-pound units are to be regarded
4.2 The conditioning simulates effects of leaching, drying,
as standard. The values given in parentheses are mathematical
temperature, and, in two methods, ultraviolet (UV) light.
conversions to SI units that are provided for information only
4.3 Method A is the method normally specified for regula-
and are not considered standard.
tory purposes when testing fire-retardant-treated wood that is
1.6 This standard does not purport to address all of the
intended for exterior applications.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Apparatus
priate safety and health practices and determine the applica-
5.1 The test apparatus shall be capable of subjecting the
bility of regulatory limitations prior to use.
specimen uniformly to the test conditions described in Section
7.
2. Referenced Documents
5.2 No special means of protecting the specimen back and
2
2.1 ASTM Standards:
edges are required, but water shall not impinge directly on
D9 Terminology Relating to Wood and Wood-Based Prod-
those surfaces which are not exposed either to the weather in
ucts
the assembled form, or to fire in the subsequent test. Water
E84 Test Method for Surface Burning Characteristics of
spray nozzles shall be provided and arranged so as to distribute
Building Materials
water evenly over the exposed specimen surface.
5.3 Accompany drying cycles with heating that is thermo-
statically controlled. The controlling temperature shall be the
1
These test methods are under the jurisdiction of ASTM Committee D07 on
air temperature measured 1 in. (25 mm) above the specimen
Wood and are the direct responsibility of Subcommittee D07.07 on Fire Perfor-
mance of Wood.
Current edition approved Nov. 1, 2008. Published December 2008. Originally
approved in 1970. Last previous edition approved in 2007 as D 2898 – 07.
2 3
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.
4
Standards volume information, refer to the standard’s Document Summary page on Available from Underwriters Laboratories, Inc., 333 Pfingsten Road, North-
the ASTM website. brook, 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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D2898–08
surface. When sunlamps are part of the method, the 7.1.3 Applywaterinamoderatelyfinesprayuniformlyover
temperature-measuring device must be shielded from the UV the exp
...
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:D2898–07 Designation: D 2898 – 08
Standard Practice for
Accelerated Weathering of Fire-Retardant-Treated Wood for
1
Fire Testing
This standard is issued under the fixed designation D 2898; 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 the durability of a fire-retardant treatment of wood under exposure to accelerated weathering.TwoFour
conditioning methods are described, bothdescribed. Methods are suitable for application to a test specimen prior to subjecting that
specimen to an appropriate fire test.
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
Test Methods E 84, E 108, and E 1354and other standard test methods for evaluating the fire performance of fire-retardant-treated
wood products.
1.4 The text of these test 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 paraentheses 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 9 Terminology Relating to Wood and Wood-Based Products
E 84 Test Method for Surface Burning Characteristics of Building Materials
E 108 Test Methods for Fire Tests of Roof Coverings
E 176 Terminology of Fire Standards
E 1354 Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen Consumption
Calorimeter
3
2.2 ICC Evaluation Service Guidelines:
EG 107 Classified Wood Roof Systems
4
2.3 UL Standards:
UL 790 Tests for Fire Resistance of Roof Covering Material
3. Terminology
3.1 Definitions—Definition used in this practice are in accordance with Terminologyies D 9 and Terminology E 176, unless
otherwise indicated.
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD07onWoodandarethedirectresponsibilityofSubcommitteeD07.07onFirePerformanceofWood.
Current edition approved April 15, 2007. Published May 2007. Originally approved in 1970. Last previous edition approved in 2004 as D2898–94(2004).
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1970. Last previous edition approved in 2007 as D 2898 – 07.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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
General Electric Type H275 RUV (275 W) or Osram Ultra-Vitalox (300 W), or equivalent, is suitable.
3
Available from ICC Evaluation Service, Inc., 5360 Workman Mill Road, Whittier, CA 90601, http://icc-es.org.
4
“Correlation of ASTM Exposure Tests for Evaluating Durability of Fire-Retardant Treatment of Wood,” by C.A. Holmes, Forest Products Laboratory, Research Paper
FPL 194, U.S.D.A. Forest Service, 1973.
4
Available from Underwriters Laboratories, Inc., 333 Pfingsten Road, Northbrook, IL 60062, http://www.ul.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D2898–08
4. Significance and Use
4.1These test methods provide a choice between two 4.1 This practice describes different methods of exposing fire-retardant-
treated wood products or assemblies to controlled accelerated weathering or conditioning.
4.2 Theconditioningsimulateseffectsofleaching,drying,temperature,and,inonemethod,twomethods,ultraviolet(UV)light.
4.3 MethodAis the method normally specified for regulatory purposes when testing fire-retardant-treated wood that is intended
for exterior applications.
5. Apparatus
5.1 The tes
...
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