ASTM D5664-02

Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber

SIGNIFICANCE AND USE
The mechanical properties evaluated by this test method provide the following:
5.1.1 Data for use in developing modification factors for the allowable design properties of fire-retardant treated lumber when used at or near room temperatures (see 6.3).
5.1.2 Data for use in developing modification factors for allowable design properties of fire-retardant treated lumber when exposed to elevated temperatures and humidity (see 6.4).
5.1.3 Data (optional) for use in modifying these factors for size effects when fire-retardant treated lumber is used at or near room temperature and when exposed to elevated temperatures and humidity (see 6.5).
Data from the first two procedures in this test method of evaluation are indicative only for that species.
Note 1—The results of the three listed species (Southern pine, Douglas fir, and either white spruce or a Spruce/Fir mixture) may be used together to make inference on untested wood species because the three tested species represent the full spectrum of expected treatability.
Data from the optional third part of this three-part method of evaluation are indicative for all species because it is primarily used to assess size effects.
SCOPE
1.1 This test method covers procedures for obtaining data to assess the initial adjustments to allowable design stresses for lumber treated with candidate commercial fire-retardant (FR) formulations and further procedures for obtaining data to assess the effect of extended exposure to elevated temperature of 66 ± 2°C (150 ± 4°F).
1.2 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-Sep-2002
• ICS: 13.220.50 - Fire-resistance of building materials and elements
• ICS: 79.040 - Wood, sawlogs and sawn timber
• Technical Committee: D07 - Wood
• Drafting Committee: D07.07 - Fire Performance of Wood

Relations

• Replaces: ASTM D5664-01a - Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber
• Effective Date: 10-Sep-2002
• Replaced By: ASTM D5664-08 - Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber
• Effective Date: 01-Aug-2008
• Referred By: ASTM D8223-19 - Standard Practice for Evaluation of Fire-Retardant Treated Laminated Veneer Lumber
• Effective Date: 10-Sep-2002
• 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-Sep-2002
• Referred By: ASTM D6841-21 - Standard Practice for Calculating Design Value Treatment Adjustment Factors for Fire-Retardant-Treated Lumber
• Effective Date: 10-Sep-2002

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: D 5664 – 02
Standard Test Method for
Evaluating the Effects of Fire-Retardant Treatments and
Elevated Temperatures on Strength Properties of Fire-
1
Retardant Treated Lumber
This standard is issued under the fixed designation D 5664; 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 NFPA 703 Standard for Fire Retardant Impregnated Wood
5
and Fire Retardant Coatings for Building Materials
1.1 This test method covers procedures for obtaining data to
U.S. Product Standard PS 20 American Softwood Lumber
assess the initial adjustments to allowable design stresses for
6
Standard
lumber treated with candidate commercial fire-retardant (FR)
formulations and further procedures for obtaining data to
3. Terminology
assess the effect of extended exposure to elevated temperature
3.1 Definitions—Definitions used in this test method are in
of 66 6 2°C (150 6 4°F).
accordance with Terminologies D 9 and E 176 and Nomencla-
1.2 This standard does not purport to address all of the
ture D 1165.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety and health practices and determine the applica-
4.1 Thegeneralobjectivesofthistestmethodaretodevelop
bility of regulatory limitations prior to use.
data to adjust allowable design stresses of FR-treated lumber
for the initial effects for the tested FR-formulation(s) and to
2. Referenced Documents
develop data on in-service thermal stability after extended
2.1 ASTM Standards:
2 exposure to environmental conditions up to 66 6 2°C (150 6
D 9 Terminology Relating to Wood
2
4°F) and$50 % relative humidity.
D 143 MethodsofTestingSmallClearSpecimensofWood
4.2 Procedure 1—This procedure uses small clear speci-
D 1165 Nomenclature of Domestic Hardwoods and Soft-
2 mens cut from end-matched nominal 2 by 4 (38 by 89-mm)
woods
2 dimension lumber (see Fig. 1) to compare the initial effects of
D 3500 Test Methods for Structural Panels in Tension
fire-retardant treatments to untreated controls for bending,
D 4761 Test Method for Mechanical Properties of Lumber
2 tension parallel, compression parallel, and horizontal shear
and Wood-Base Structural Material
properties.
D 5516 Test Method for Evaluating the Flexural Properties
4.3 Procedure 2—This procedure uses small clear speci-
of Fire-Retardant Treated Softwood Plywood Exposed to
2 mens cut from end matched nominal 2 by 4 (38 by 89-mm)
Elevated Temperatures
dimension lumber. This second set of specimens is used to
E 84 Test Method for Surface Burning Characteristics of
3 assess the differential trends between end-matched fire-
Building Materials
3 retardant treated and untreated specimens on bending and
E 176 Terminology of Fire Standards
tension parallel properties over the course of a prolonged
2.2 Other Standards:
exposure to elevated temperature.
AWPAC20 Lumber—Fire RetardantTreatment by Pressure
4 4.4 Procedure 3—The optional third procedure uses full-
Processes
sized nominal 2 by 4 (38 by 89-mm) dimension lumber to
modify the small clear specimen results from 4.2 and 4.3 for
1
This test method is under the jurisdiction of ASTM Committee D07 on Wood
size effects.
and is the direct responsibility of Subcommittee D07.07 on Fire Performance of
Wood.
Current edition approved Sept. 10, 2002. Published November 2002. Originally
published as D 5664–95. Last previous edition D 5664–01a.
2 5
Annual Book of ASTM Standards, Vol 04.10. Available from National Fire Protection Association, P.O. Box 9191, Quincy,
3
Annual Book of ASTM Standards, Vol 04.07. MA 02269-9101.
4 6
Available from American Wood-Preservers Assoc., P.O. Box 5690, Granbury, Available from The American Lumber Standard Committee, P.O. Box 210,
TX 76049–0690. Germantown, MD 20875-0210.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D5664–02
midpoint of the retention range as specified for the species by
the agency certifying the flame spread index of the treated
lumber. The retention range specified by the certifying agency
shall provide a flame-spread index of 25 or less when tested in
accordance with Test Method E 84 for 10 min, show no
evidenceofsignificantprogressioncombustionwhenthetestis
continued for an additional 20-min period and not allow
progression of the flame front beyond a distance of 3.2 m (10.5
ft) beyond the centerline of the burners anytime during the
30-min extended test.
6.1.1.1 The provisions of 6.1.1 are not int
...