ASTM D2898-94(1999)

Standard Test Methods for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing

SCOPE
1.1 These test methods cover the durability of a fire-retardant treatment of wood under exposure to accelerated weathering. It is intended that fire-retardant treatment of the specimen be by pressure impregnation, rather than being simply by a surface coating with or without a protective layer. Two conditioning methods are described, both suitable for application to a test specimen prior to subjecting that specimen to an appropriate fire test. These methods are applicable to treated wood products or assemblies thereof. The test specimens will be in the form of, or suitable for fabrication into, fire test specimens, such as those described in Test Methods E84, E108, and E286.  
1.2 The text of these test methods references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of these test methods.  
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: 09-Apr-1999
• ICS: 71.100.50 - Wood-protecting chemicals
• Technical Committee: D07 - Wood
• Drafting Committee: D07.07 - Fire Performance of Wood

Relations

• Replaced By: ASTM D2898-94(2004) - Standard Test Methods for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing
• Effective Date: 01-Oct-2004
• Referred By: ASTM E108-20a - Standard Test Methods for Fire Tests of Roof Coverings
• Effective Date: 10-Apr-1999
• Referred By: ASTM E2726/E2726M-12a(2017) - Standard Test Method for Evaluating the Fire-Test-Response of Deck Structures to Burning Brands
• Effective Date: 10-Apr-1999
• Referred By: ASTM D8391-22e1 - Standard Specification for Demonstrating Equivalent Fire Performance for Wood-Based Floor Framing Members to Unprotected 2 by 10 Dimension Lumber or Equal-Sized Structural Composite Lumber
• Effective Date: 10-Apr-1999
• Referred By: ASTM E2570/E2570M-07(2019) - Standard Test Methods for Evaluating Water-Resistive Barrier (WRB) Coatings Used under Exterior Insulation and Finish Systems (EIFS) or EIFS with Drainage
• Effective Date: 10-Apr-1999
• Referred By: ASTM E2632/E2632M-20 - Standard Test Method for Evaluating the Under-Deck Fire Test Response of Deck Materials
• Effective Date: 10-Apr-1999
• Referred By: ASTM E2957-17 - Standard Test Method for Resistance to Wildfire Penetration of Eaves, Soffits and Other Projections
• Effective Date: 10-Apr-1999
• Referred By: ASTM D6662-22 - Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards
• Effective Date: 10-Apr-1999
• Referred By: ASTM E2707-22 - Standard Test Method for Determining Fire Penetration of Exterior Wall Assemblies Using a Direct Flame Impingement Exposure
• Effective Date: 10-Apr-1999

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D 2898 – 94 (Reapproved 1999)
Standard Test Methods for
Accelerated Weathering of Fire-Retardant-Treated Wood for
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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope ing. The conditioning simulates effects of leaching, drying,
temperature and, in one method, ultraviolet light.
1.1 These test methods cover the durability of a fire-
3.2 Method A was devised for larger specimens, and
retardant treatment of wood under exposure to accelerated
Method B for smaller ones. A research study showed that the
weathering. It is intended that fire-retardant treatment of the
two exposure methods, A and B, were equivalent in leaching
specimen be by pressure impregnation, rather than being
effect as demonstrated by the flame-spread results obtained on
simply by a surface coating with or without a protective layer.
specimens exposed by either method when tested by Test
Two conditioning methods are described, both suitable for
Methods E 84 and E 286.
application to a test specimen prior to subjecting that specimen
to an appropriate fire test. These methods are applicable to
4. Apparatus (see Fig. 1 and Fig. 2)
treated wood products or assemblies thereof. The test speci-
4.1 The test apparatus shall be capable of subjecting the
mens will be in the form of, or suitable for fabrication into, fire
specimen uniformly to the test conditions described in Section
test specimens, such as those described in Test Methods E 84,
6.
E 108, and E 286.
4.2 No special means of protecting the specimen back and
1.2 The text of these test methods references notes and
edges are required, but water shall not impinge directly on
footnotes which provide explanatory material. These notes and
those surfaces which are not exposed either to the weather in
footnotes (excluding those in tables and figures) shall not be
the assembled form, or to fire in the subsequent test. Water
considered as requirements of these test methods.
spray nozzles shall be provided and arranged so as to distribute
1.3 This standard does not purport to address all of the
water evenly over the exposed specimen surface.
safety concerns, if any, associated with its use. It is the
4.3 Heating shall be thermostatically controlled. Forced air
responsibility of the user of this standard to establish appro-
movement shall be uniform across the specimen surface, with
priate safety and health practices and determine the applica-
provisions made for adequate air changes to assure thorough
bility of regulatory limitations prior to use.
drying.
2. Referenced Documents 4.4 In Method B, ultraviolet light shall be distributed as
evenly as possible over the specimen surface, using sunlamps
2.1 ASTM Standards:
directed normal to, and mounted 26 in. (66 cm) above the
E 84 Test Method for Surface Burning Characteristics of
specimen measured from the bottom of the lamp. One lamp
Building Materials
2 2
2 shall be used for each 8 ft (0.74 m ) of specimen, or fraction
E 108 Test Methods for Fire Tests of Roof Coverings
thereof.
E 286 Test Method for Surface Flammability of Building
Materials Using an 8-ft (2.44-m) Tunnel Furnace
5. Test Specimen
3. Significance and Use 5.1 The test specimen shall include all those essential parts
of the corresponding fire test specimen that may be subjected
3.1 These test methods provide a choice between two
to weather exposure in normal use. Shingles or shakes shall be
methods of exposing fire-retardant-treated wood products or
applied to their intended sheathing.
assemblies to controlled accelerated weathering or condition-
These test methods are under the jurisdiction of ASTM Committee D-7 on
Wood and are the direct responsibility of Subcommittee D07.07 on Fire Perfor- Correlation of ASTM Exposure Tests for Evaluating Durability of Fire-
mance of Wood. Retardant Treatment of Wood. Forest Products Laboratory, Research Paper FPL 194.
Current edition approved July 15, 1994. Published September 1994. Originally U.S.D.A. Forest Service. 1973.
4 t
published as D 2898 – 70T. Last previous edition D 2898 – 81 (1986). General Electric Type H275 RUV (275 W) or Osram Ultra-Vitalox (300 W), or
Annual Book of ASTM Standards, Vol 04.07. equivalent, is suitable.
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