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1 1 of 1 5/6/2014 4:26 PM NFPA STANDARDS DEVELOPMENT SITE SECOND DRAFT REPORT Closing Date: January 03, 2014 NOTE: All Public Comment must be received by 5:00 pm EST/EDST on the published Closing Date. Welcome Kimberly Shea! NFPA 703, Standard for Fire Retardant-Treated Wood and Fire Retardant Coatings for Building Materials, 2015 Edition Chapter 1 Administration Quick Print 1.1* Scope. This standard provides criteria for defining and identifying fire retardant treated wood and fire retardant coated building materials. 1.2 Purpose. (Reserved) 1.3 Application. (Reserved) 1.4 Retroactivity. Unless otherwise specified, the provisions of this standard shall not apply to facilities, equipment, structures, or installations that existed or were approved for construction or installation prior to the effective date of the standard. Where specified, the provisions of this standard shall be retroactive. 1.5 Equivalency Nothing in this standard is intended to prevent the use of systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durability, and safety over those prescribed by this standard Technical documentation shall be submitted to the authority having jurisdiction to demonstrate equivalency. The system, method, or device shall be approved for the intended purpose by the authority having jurisdiction. 1.6 Units SI Units. Metric units in this standard are in accordance with the modernized metric system known as the International System of Units (SI) Primary and Equivalent Values. If a value for a measurement as given in this standard is followed by an equivalent value in other units, the first stated value shall be regarded as the requirement. A given equivalent value might be approximate.

2 1 of 1 5/6/2014 4:26 PM NFPA STANDARDS DEVELOPMENT SITE SECOND DRAFT REPORT Closing Date: January 03, 2014 NOTE: All Public Comment must be received by 5:00 pm EST/EDST on the published Closing Date. Welcome Kimberly Shea! NFPA 703, Standard for Fire Retardant-Treated Wood and Fire Retardant Coatings for Building Materials, 2015 Edition Chapter 2 Referenced Publications Quick Print 2.1 General. The documents or portions thereof listed in this chapter are referenced within this standard and shall be considered part of the requirements of this document. 2.2 NFPA Publications. (Reserved) 2.3 Other Publications. PCs [1] SR-1 Hide Legislative ASTM Publications. ASTM International, P.O. Box C700, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA ASTM D 2898, Standard Test Methods for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing, ASTM D 3201, Standard Test Method for Hygroscopic Properties of Fire-Retardant Wood and Wood-Based Products, 2008a e1. ASTM D 5516, Standard Test Method for Evaluating the Flexural Properties of Fire-Retardant Treated Softwood Plywood Exposed to Elevated Temperatures, ASTM D 5664, Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber, ASTM D 6305, Standard Practice for Calculating Bending Strength Design Adjustment Factors for Fire-Retardant-Treated Plywood Roof Sheathing, ASTM D 6841, Standard Practice for Calculating Design Value Treatment Adjustment Factors for Fire-Retardant-Treated Lumber, ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, 2012c UL Publications. Underwriters Laboratories, Inc., 333 Pfingsten Road, Northbrook, IL ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Building Materials, 2008, Revised Other Publications. Merriam-Webster s Collegiate Dictionary, 11th edition, Merriam-Webster, Inc., Springfield, MA, References for Extracts in Mandatory Sections. (Reserved)

3 1 of 1 5/6/2014 4:27 PM NFPA STANDARDS DEVELOPMENT SITE SECOND DRAFT REPORT Closing Date: January 03, 2014 NOTE: All Public Comment must be received by 5:00 pm EST/EDST on the published Closing Date. Welcome Kimberly Shea! NFPA 703, Standard for Fire Retardant-Treated Wood and Fire Retardant Coatings for Building Materials, 2015 Edition Chapter 3 Definitions Quick Print 3.1 General. The definitions contained in this chapter shall apply to the terms used in this standard. Where terms are not defined in this chapter or within another chapter, they shall be defined using their ordinarily accepted meanings within the context in which they are used. Merriam-Webster s Collegiate Dictionary, 11th edition, shall be the source for the ordinarily accepted meaning. 3.2 NFPA Official Definitions * Approved. Acceptable to the authority having jurisdiction * Authority Having Jurisdiction (AHJ). An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure Labeled. Equipment or materials to which has been attached a label, symbol, or other identifying mark of an organization that is acceptable to the authority having jurisdiction and concerned with product evaluation, that maintains periodic inspection of production of labeled equipment or materials, and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner * Listed. Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equipment, material, or service meets appropriate designated standards or has been tested and found suitable for a specified purpose Shall. Indicates a mandatory requirement Should. Indicates a recommendation or that which is advised but not required Standard. A document, the main text of which contains only mandatory provisions using the word shall to indicate requirements and which is in a form generally suitable for mandatory reference by another standard or code or for adoption into law. Nonmandatory provisions are not to be considered a part of the requirements of a standard and shall be located in an appendix, or annex, footnote, informational note, or other means as permitted in the Manual of Style for NFPA Technical Committee Documents. fine-print note and are not to be considered a part of the requirements of a standard. 3.3 General Definitions Fire-Retardant Coating. A coating that reduces the flame spread index of Douglas fir, and all other tested combustible surfaces to which it is applied, by at least 50 percent or to a flame spread index value of 75 or less, whichever is the lesser value, and has a smoke developed index not exceeding 200 when tested in accordance with ASTM E 84 or ANSI/UL Class A Fire-Retardant Coating. A coating that reduces the flame spread index to 25 or less and that has a smoke developed index not exceeding 200 where applied to the applicable substrate, building material, or species of wood when tested in accordance with ASTM E 84 or ANSI/UL Class B Fire-Retardant Coating. A coating that reduces the flame spread index to greater than 25 but not more than 75 and that has a smoke developed index not exceeding 200 where applied to the applicable substrate, building material, or species of wood when tested in accordance with ASTM E 84 or ANSI/UL Fire Retardant Treated Wood. A wood product impregnated with chemical by a pressure process or other means during manufacture, treated to exhibit reduced surface-burning characteristics and resist propagation of fire.

4 1 of 2 5/6/2014 4:27 PM NFPA STANDARDS DEVELOPMENT SITE SECOND DRAFT REPORT Closing Date: January 03, 2014 NOTE: All Public Comment must be received by 5:00 pm EST/EDST on the published Closing Date. Welcome Kimberly Shea! NFPA 703, Standard for Fire Retardant-Treated Wood and Fire Retardant Coatings for Building Materials, 2015 Edition Chapter 4 Fire Retardant Treated Wood Quick Print 4.1 Application. These requirements shall apply to fire retardant treated wood. PCs [2] SR-2 Hide Legislative Fire Retardant Treated Wood. Fire retardant treated wood shall be a wood product impregnated with chemical by a pressure process or other means during manufacture meeting the requirements in through Materials treated by means other than those specified in shall be considered a fire retardant coated material and shall meet the requirements of fire-retardant coating in Chapter Fire retardant treated wood shall be tested in accordance with ASTM E 84 or ANSI/UL Fire retardant treated wood shall have a listed flame spread index of 25 or less Fire retardant treated wood shall not show evidence of significant progressive combustion when the test is continued for an additional 20-minute period The flame front shall not progress more than 10.5 ft (3.2 m) beyond the centerline of the burners at any time during the test For wood products produced by other means during manufacture other than a pressure process, all sides of the wood product shall be tested in accordance with and produce the results required in Sections through Wood structural panels shall be permitted to tested only on the front and back faces Fire Retardant Treated Wood Treatment Pressure Process. For wood products impregnated with chemicals by a pressure process, the process shall be performed in closed vessels under gauge pressures not less than 50 psi (345 kpa).the treatment shall provide permanent protection to all surfaces of the wood product Other Means During Manufacture. For wood products produced by other means during manufacture, the treatment shall be an integral part of the manufacturing process of the wood product. The treatment shall provide permanent protection to all surfaces of the wood product. 4.2 Interior Applications. Interior fire retardant treated wood shall have a moisture content of not over 28 percent when tested in accordance with the procedures of ASTM D 3201 at 92 percent relative humidity. Interior fire retardant treated wood shall be tested in accordance with or Wood Structural Panels. Adjustment to design values for wood structural panels shall be in accordance with the following: (1) The effect of the treatment, the method of redrying after treatment, and the exposure to high temperatures and high humidities on the flexure properties of fire retardant treated softwood plywood shall be determined in accordance with ASTM D (2) The test data developed by ASTM D 5516 shall be used to develop adjustment factors or maximum loads and spans, or both, for untreated plywood design values in accordance with ASTM D (3) Each manufacturer shall publish the allowable maximum loads and spans for service as floor and roof sheathing for their treatment.

5 2 of 2 5/6/2014 4:27 PM Lumber. Adjustment to design values for lumber shall be in accordance with the following: (1) For each species of wood treated, the effect of the treatment, the method of redrying after treatment, and the exposure to high temperatures and high humidities on the allowable design properties of fire retardant treated lumber shall be determined in accordance with ASTM D (2) The test data developed by ASTM D 5664 shall be used to develop modification factors for use at or near room temperature and at elevated temperatures and humidity in accordance with ASTM D (3) Each manufacturer shall publish the modification factors for service at ambient temperatures of up to 100 F (37.8 C) and for service as roof framing. (4) The roof framing modification factors shall take into consideration the climatological location. 4.3 Exposure to Weather or Damp or Wet Locations. Where fire retardant treated wood is exposed to weather or damp or wet locations, it shall be identified as exterior to indicate that there is no increase in the listed flame spread index when subjected to ASTM D 2898 (Method A). (See 3.3.2, Fire Retardant Treated Wood.) 4.4 Moisture Content Fire retardant treated wood shall have a moisture content of 19 percent or less for lumber and 15 percent or less for wood structural panels before use For fire retardant treated wood dried after treatment, the temperatures shall not exceed the temperatures used in drying the lumber and plywood submitted for the testing described in or Fire retardant treated wood that is air-dried after treatment (ADAT) shall be protected from the weather. 4.5 Labeling. Fire retardant treated lumber and wood structural panels shall be labeled and listed with the following information: (1) Identification mark of an approved agency that lists materials in accordance with Chapter 3(See 3.2.4, Listed.) (2) Identification of the treating manufacturer (3) Name of the fire-retardant treatment (4) Species of wood treated (5) End use of the product (6) Flame spread index and smoke developed index (7) Method of drying after treatment (8) Verification of conformance with appropriate standards in accordance with Sections 4.2 through 4.4 (9) The words No increase in the listed classification when subjected to the Standard Rain Test [ASTM D 2898 (Method A)], for fire retardant treated wood exposed to weather or to damp or wet locations

6 1 of 1 5/6/2014 4:27 PM NFPA STANDARDS DEVELOPMENT SITE SECOND DRAFT REPORT Closing Date: January 03, 2014 NOTE: All Public Comment must be received by 5:00 pm EST/EDST on the published Closing Date. Welcome Kimberly Shea! NFPA 703, Standard for Fire Retardant-Treated Wood and Fire Retardant Coatings for Building Materials, 2015 Edition Chapter 5 Fire-Retardant Coatings for Building Materials Quick Print 5.1* Application. These requirements shall apply to fire-retardant paints and other surface coatings applied to building materials used for interior finish to reduce flame spread and smoke development. 5.2 General * Fire-retardant coatings shall remain stable and adhere to the material under all atmospheric conditions to which the material is exposed A fire-retardant coating shall not be used for unprotected outdoor installations unless labeled for such installations The classification of fire-retardant coatings shall apply only when the coating is applied at the rates of coverage and to the applicable substrate, building material, or species of wood indicated on the test report when the coating is applied in accordance with the manufacturer's directions supplied with the container Fire-retardant coatings shall be applied in accordance with the manufacturer's directions The application shall be certified by the applicator as being in conformance with the manufacturer's directions for application A fire-retardant coating shall not be coated over with any material unless both the fire-retardant coating and the overcoat have been tested as a system and are found to meet the requirements of a fire-retardant coating. 5.3 Tests * Fire-retardant coatings shall be tested in accordance with ASTM E 84 or ANSI/UL Where fire-retardant coatings are to be subjected to sustained humidity of 80 percent or more or exposure to the weather, certification by a testing laboratory shall be required to indicate that there is no increase in listed classification when subjected to the Standard Rain Test described in ASTM D 2898 (Method A). 5.4 Maintenance of Protection. Fire-retardant coatings shall possess the desired degree of permanency and shall be maintained to retain the effectiveness of the treatment under the service conditions encountered in actual use. 5.5 Labeled The fire retardant coating material shall be listed and labeled to indicate conformance with the requirements in Sections 5.2 through The manufacturers' instructions for application shall be affixed to each container of the fire retardant coating material.

7 1 of 1 5/6/2014 4:27 PM NFPA STANDARDS DEVELOPMENT SITE SECOND DRAFT REPORT Closing Date: January 03, 2014 NOTE: All Public Comment must be received by 5:00 pm EST/EDST on the published Closing Date. Welcome Kimberly Shea! NFPA 703, Standard for Fire Retardant-Treated Wood and Fire Retardant Coatings for Building Materials, 2015 Edition Annex A Explanatory Material Quick Print Annex A is not a part of the requirements of this NFPA document but is included for informational purposes only. This annex contains explanatory material, numbered to correspond with the applicable text paragraphs. A.1.1 Fire resistance ratings measured on an hourly basis are not covered in this standard. To establish such ratings, tests should be made in accordance with NFPA 251. A Approved. The National Fire Protection Association does not approve, inspect, or certify any installations, procedures, equipment, or materials; nor does it approve or evaluate testing laboratories. In determining the acceptability of installations, procedures, equipment, or materials, the authority having jurisdiction may base acceptance on compliance with NFPA or other appropriate standards. In the absence of such standards, said authority may require evidence of proper installation, procedure, or use. The authority having jurisdiction may also refer to the listings or labeling practices of an organization that is concerned with product evaluations and is thus in a position to determine compliance with appropriate standards for the current production of listed items. A Authority Having Jurisdiction (AHJ). The phrase authority having jurisdiction, or its acronym AHJ, is used in NFPA documents in a broad manner, since jurisdictions and approval agencies vary, as do their responsibilities. Where public safety is primary, the authority having jurisdiction may be a federal, state, local, or other regional department or individual such as a fire chief; fire marshal; chief of a fire prevention bureau, labor department, or health department; building official; electrical inspector; or others having statutory authority. For insurance purposes, an insurance inspection department, rating bureau, or other insurance company representative may be the authority having jurisdiction. In many circumstances, the property owner or his or her designated agent assumes the role of the authority having jurisdiction; at government installations, the commanding officer or departmental official may be the authority having jurisdiction. A Listed. The means for identifying listed equipment may vary for each organization concerned with product evaluation; some organizations do not recognize equipment as listed unless it is also labeled. The authority having jurisdiction should utilize the system employed by the listing organization to identify a listed product. A.5.1 This section does not address the use of fire-retardant coatings as a thermal barrier. A Certain coatings might not be suitable for high-humidity occupancies or for other occupancies where combustible dust or oily residue deposits might accumulate, affecting the ability of the coating to adhere to the substrate material. A The flame spread index is expressed numerically on a scale for which the zero point is fixed by the performance of inorganicreinforced cement board and the 100 point (approximately) is fixed by the performance of red oak flooring.

8 1 of 1 5/6/2014 4:27 PM NFPA STANDARDS DEVELOPMENT SITE SECOND DRAFT REPORT Closing Date: January 03, 2014 NOTE: All Public Comment must be received by 5:00 pm EST/EDST on the published Closing Date. Welcome Kimberly Shea! NFPA 703, Standard for Fire Retardant-Treated Wood and Fire Retardant Coatings for Building Materials, 2015 Edition Annex B Informational References Quick Print B.1 Referenced Publications. The documents or portions thereof listed in this annex are referenced within the informational sections of this standard and are not part of the requirements of this document unless also listed in Chapter 2 for other reasons. PCs [1] SR-3 Hide Legislative B.1.1 NFPA Publications. (Reserved) National Fire Protection Association, 1 Batterymarch Park, Quincy, MA NFPA 251, Standard Methods of Tests of Fire Resistance of Building Construction and Materials, 2006 edition. Global SR-4 Hide Deleted SR-4 Hide Legislative B.1.2 Other Publications. (Reserved) B ASTM Publications. ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials, 2012a. B UL Publications. Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL ANSI/UL 263, Fire Tests of Building Construction and Materials, 2003, revised B.2 Informational References. (Reserved) B.3 References for Extracts in Informational Sections. (Reserved)

9 Page 1 of 13 8/28/2013 Public Comment No. 2-NFPA [ Section No ] ASTM Publications. ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, PA ASTM D 2898, Standard Test Methods for Accelerated Weathering of Fire- Retardant-Treated Wood for Fire Testing, ASTM D 3201, Standard Test Method for Hygroscopic Properties of Fire- Retardant Wood and Wood-Based Products, 2008a e1. ASTM D 5516, Standard Test Method for Evaluating the Flexural Properties of Fire-Retardant Treated Softwood Plywood Exposed to Elevated Temperatures, ASTM D 5664, Standard Test Method for Evaluating the Effects of Fire- Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber, ASTM D 6305, Standard Practice for Calculating Bending Strength Design Adjustment Factors for Fire-Retardant-Treated Plywood Roof Sheathing, ASTM D 6841, Standard Practice for Calculating Design Value Treatment Adjustment Factors for Fire-Retardant-Treated Lumber, ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, c Statement of Problem and Substantiation for Public Comment standard date update Submitter Information Verification Submitter Full Name: Marcelo Hirschler Organization: GBH International Street Address: City: State: Zip: Submittal Date: Thu May 02 00:39:03 EDT 2013 Committee Statement Committee Action: Accepted Resolution: SR-1-NFPA Statement: standard date update Copyright Assignment

10 Page 2 of 13 8/28/2013 I, Marcelo Hirschler, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Marcelo Hirschler, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

11 Page 3 of 13 8/28/2013 Public Comment No. 4-NFPA [ Section No ] Fire Retardant Treated Wood. Fire retardant treated wood shall be a wood product impregnated with chemical by a pressure process or other means during manufacture meeting the requirements in through Fire retardant treated wood shall be tested in accordance with ASTM E 84 or ANSI/UL 723 or in accordance with ASTM E Fire retardant treated wood shall have a listed flame spread index of 25 or less Fire retardant treated wood shall not show evidence of significant progressive combustion when the test is continued for an additional 20-minute period conducted for a total test time of 30 minutes The flame front shall not progress more than 10.5 ft (3.2 m) beyond the centerline of the burners at any time during the test For wood products produced by other means during manufacture other than a pressure process, all sides of the wood product shall be tested in accordance with and produce the results required in Sections through Wood structural panels shall be permitted to tested only on the front and back faces. Also, add as follows: Add ASTM E2768, Standard Test Method for Extended Duration Surface Burning Characteristics of Building Materials (30 min Tunnel Test (2011) to section on ASTM Publications.

12 Page 4 of 13 8/28/2013 Statement of Problem and Substantiation for Public Comment

13 Page 5 of 13 8/28/2013 ASTM E2768 was developed specifically for the purpose of replacing the lengthy description of ASTM E84 with the extended 20 minute period. This was recommended as public input to the NFPA 5000 technical committee on structure. construction and materials for approval into NFPA 5000 as part of the revision of the definition of FRTW. In view of the concern by the committee with the requirements in definitions it is now recommended that it simply be used to indicate an alternate approach to testing for FRTW materials (equivalent to the ASTM E84 extended for 30 minutes). This is being submitted to the committee for action in NFPA 703 in view of the fact that a similar change was recommended for approval in the International Wildland Urban Interface Code at the recent ICC code hearings,(proposal IWUIC 2). For information of the committee, the information contained in ASTM E2768 (2011) is being shown below. ASTM E Standard Test Method for Extended Duration Surface Burning Characteristics of Building Materials (30 min Tunnel Test) (2011) 1. Scope 1.1 The purpose of this fire-test-response standard is to evaluate the ability of a product to limit the surface spread of flame when evaluated for 30 min. This fire-test-response standard uses the apparatus and procedure of Test Method E84 with the total test period extended to 30 min. 1.2 Building applications affecting fire and life safety often require products with specific criteria for surface spread of flame and flame spread index. The resulting performance characteristics included in the conditions of classification for this fire-test-response standard are intended to be used for regulatory purposes to determine the suitability of materials or products for use in buildings under specified conditions where significantly reduced surface burning characteristics are re- quired. 1.3 Materials and products that are beyond the scope of Test Method E84 are beyond the scope of this standard. 1.4 Materials or products which melt, drip or delaminate to the extent that the continuity of the flame front is destroyed are beyond the scope of this standard. NOTE 1 Testing of materials that melt, drip, or delaminate to such a degree that the continuity of the flame-front is destroyed, results in low flame spread indices that do not relate directly to indices obtained by testing materials that remain in place. Materials or products that melt, drip, or delaminate, or that cannot support their own weight, have the potential for demonstrating reduced flame spread results as compared to the flame spread results where the materials or products remain in place during testing. 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 The text of this standard references notes and footnotes that provide explanatory information. These notes and foot- notes, excluding tables and figures, shall not be considered as requirements of the standard. 1.7 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions 1.8 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 appro- priate safety and health practices and determine the applica- bility of regulatory limitations prior to use. 1.9 Fire testing is inherently hazardous. Adequate safe- guards for personnel and property shall be employed in conducting these tests. 2. Referenced Documents 2.1 ASTM Standards: E84 Test Method for Surface Burning Characteristics of Building Materials E176 Terminology of Fire Standards 2.2 ICC Codes IBC International Building Code

14 Page 6 of 13 8/28/2013 IWUIC International Wildland Urban Interface Code IRC International Residential Code 2.3 NFPA Code NFPA 101 Life Safety Code 2.4 California Building Code CBC California Building Code 3. Terminology 3.1 Definitions For definitions of terms used in this test method, refer to Terminology E176 and Test Method E84. The terms surface flame spread, flame spread index, and smoke developed index are of particular interest to this standard. 4. Summary of Test Method 4.1 This test method is conducted using the same equip- ment, apparatus, calibration, and calculation of flame spread index and smoke developed index as Test Method E Test Method E84 exposes a nominal 24-ft long by 20-in wide (7.32 m by 508 mm) specimen to a controlled air flow and flaming fire exposure adjusted to spread the flame along the entire length of the select grade red oak specimen in 5.5 min (615 s). Test Method E84 measures the flame spread distance from a point beginning 4.5 ft (1.4 m) beyond the centerline of the burners. 4.3 The flame spread index is determined during the initial 10 min of the test period and calculated as described in Test Method E In this test method, the Test Method E84 test is extended by 20 min to a 30 min test period. Determination is made of the distance traveled by the flame front (surface spread of flame) as measured from the centerline of the burners during the 30 min test period. 4.5 The test method has conditions for classification in Section Significance and Use 5.1 This standard is useful to establish the relative surface burning characteristics of materials or products under labora- tory conditions for a 30 min test period. 5.2 The performance characteristics in the conditions of classification are intended to be used in specific applications as required by building codes or other regulatory requirements or specifications. 5.3 This test method does not provide the measurement of heat transmission through the tested surface. 5.4 This test method does not provide the classification or definition of a material or product as noncombustible, by means of the results from this standard test or flame spread index by itself. 6. Apparatus/Test Equipment 6.1 The apparatus, equipment, recording devices, and sys- tems are to be the same as those detailed in Test Method E Hazards 7.1 This test is conducted using the equipment, apparatus, and procedure of Test Method E84. The hazards described in Test Method E84 are applicable. 8. Sampling, Test Specimens and Test Units 8.1 The test specimens shall be representative of the mate- rial or product being evaluated. 8.2 Materials or products that are not homogeneous or are not symmetrical about their longitudinal axis shall have each surface evaluated separately Surfaces of the material or product that, due to their small surface area, are impractical to test in accordance with Test Method E84 (for example, the edges of a piece of plywood) are excluded from this requirement It shall be permissible to test and classify one or more surfaces of a material or product as meeting the conditions of classification of this standard and classify without testing the other surfaces as not meeting the conditions of classification of this standard. 8.3 Test Specimens: The test specimen sizes shall comply with those described in Test Method E Applicable practices listed in Test Method E84 and related provisions of Test Method

15 Page 7 of 13 8/28/2013 E84 shall be used for specimen preparation and mounting. 9. Calibration and Standardization 9.1 The calibration and standardization of the apparatus and equipment for this standard shall be as described in Test Method E Conditioning 10.1 Conditioning of test specimens shall be conducted as described in Test Method E Procedure 11.1 Conduct the test in accordance with Test Method E84 with the following additional requirements: The test shall be continued for a total period of 30 min During the initial 10 min of the test, record the times and extent of flame front advancement in accordance with Test Method E84. Observe and record the maximum flame front travel from the centerline of the burners during the 30-min period of the test. This method uses the recording devices of Test Method E84 (see Note 2). NOTE 2 If for purpose of calculating the flame spread index the zero point of the recording equipment is at the base end of the ignition fire, the maximum flame front travel distance required in this standard shall be the recorded distance plus 4.5 ft. (1.4 m) In Test Method E84 and this standard, the calculation of the flame spread index is based on the flame spread distance measured from a point beginning 4.5 ft (1.4 m) beyond the centerline of the burners during the first 10 min Follow all other procedures described in Test Method E84 including those for determination of flame spread index during the initial 10 min The determination of the smoke developed index during the initial 10 min of this test is optional. 12. Interpretation of Results 12.1 Determine the following: Flame spread index and smoke developed index (optional) during the initial 10 min in accordance with Test Method E84 (see Note 2) The maximum distance of surface spread of flame as measured from the centerline of the burner during the 30 min test period Where separate tests are conducted on different sur- faces of the test specimens (See 8.2) the information specified in and shall be determined for each tested surface. 13. Conditions of Classification 13.1 The test method has the following conditions of classification for a material or product to be classified as meeting the requirements of this standard: The flame spread index shall be 25 or less as determined for the initial 10 min test period, The flame front shall not progress more than 10.5 ft (3.2 m) beyond the centerline of the burners at any time during the 30 min test period. This is considered evidence of no significant progressive combustion in this test method For materials or products that are not homogeneous or symmetrical about their longitudinal axis, only surfaces that have been individually tested shall be eligible to be classified and reported as meeting the conditions of classification of this standard. 14. Report 14.1 The report shall clearly state that it applies to all surfaces of the material or product tested in accordance with the standard or, where the material or product is not homogeneous or symmetrical about its longitudinal axis, the report shall state that it only applies to those surfaces that have been tested and so classified in accordance with this standard The following shall be included in the test report: Report the material (or product) or separate surfaces of the material (or product) as meeting the conditions of classification if the test results for the test specimens meet the conditions of classification of Test results shall be reported for each surface tested.

16 Page 8 of 13 8/28/ Where a material or product is not homogeneous or symmetrical about its longitudinal axis and all surfaces have not been individually tested, those surfaces not tested shall be clearly identified and reported as unclassified in accordance with this standard Description of the material or product to include its thickness and the nominal width of the material or product used to construct the test specimens Non-proprietary information on the process, treat- ment, or surface condition which forms the basis of identifying the material or product. For a manufactured or treated product, the date of manufacture or treatment Date of test specimen construction and the construc- tion details including the number of sections, methods of joining, and any deviations from construction details specified in any applicable Practice on the mounting of the test specimen Conditioning of test specimens prior to evaluation Description of the mounting method If there is an applicable Practice (see Test Method E84) for the mounting of the test specimen, state the Practice designation and any deviations from the applicable Practice The maximum measurement of surface spread of flame and time of occurrence for each test The flame spread index for each test If recorded, the smoke developed index for each test Observation of the specimen during the total test period for factors which influence the interpretation of results including, but not limited to, delamination, sagging, shrinkage, fallout, disruption of the continuity of the flame front or smoldering Graphical plots of the flame spread versus time for the test duration and if recorded, the smoke developed versus time for the initial 10 min of the test period. The distance axis of the flame spread graph shall be labeled to indicate the origin (either the burner centerline or +4.5 ft (1.4 m)). 15. Precision and Bias 15.1 The precision and bias of this test method for measur- ing flame spread and smoke developed index are as specified in Test Method E No information is presented about either the precision or the bias for observing the occurrence of flame front progressing beyond 10.5 ft (3.2 m) since the test result is determinate. 16. Keywords 16.1 flame spread index; surface burning characteristics; smoke develop index APPENDIX (Nonmandatory Information) X1. COMMENTARY X1.1 Introduction X1.1.1 This commentary has been prepared to provide the user of this test method with background information on the standard. X1.1.2 This standard is based on a modification of Test Method E84 that has been used for many years in provisions in the building codes and related specifications pertaining to fire-retardant-treated wood. Such codes include the International Building Code (IBC) and International Residential Code (IRC) as well as other documents. The test requirement is only one of the performance requirements for fire-retardant-treated wood in the building codes. There are other performance requirements and inherent characteristics of fireretardant- treated wood that were considered relevant when provisions in the codes were approved to allow the use of fire-retardant- treated wood in specific applications. X1.1.3 It was commonly referred to as the 30-minutes E84 tunnel test. However, Test Method E84 has no provisions for extending the test to the 30 min duration. X1.1.4 The Extended Test Method E84 test is increasingly being used in requirements that are not limited to fire-retardant-treated wood. For example, the International Wildland Urban Interface Code (IWUIC) and California Building Code (CBC) use the test for assessing materials and products that can be designated as ignition-resistant materials.

17 Page 9 of 13 8/28/2013 X1.2 Development of this Standard X1.2.1 At the time this standard was initially prepared, the existing requirements for fireretardant-treated wood included a requirement that there be no evidence of significant progressive combustion when the Test Method E84 test was extended to 30 min. This requirement was also part of other applications of the test to other materials or products. The questions as to what constitutes significant progressive com- bustion and how one makes that determination had not been interpreted or otherwise clarified in the codes or in any other known document. In the development of this ASTM standard, it was concluded that no significant progressive combustion is evident if the flame front does not progress more than 10.5 ft (3.2 m) beyond the centerline of the burners at any time during the 30- min exposure. This evidence had been used by labora- tories involved in testing fireretardant-treated wood for many years. As a result, a statement to that effect was added to of the standard. X1.3 Continued Progressive Combustion and Continued Propagation of Fire in NFPA 101 X1.3.1 In some editions of the NFPA Life Safety Code (NFPA 101), requirements for no continued progressive com- bustion or for no continued propagation of fire are for the end of the 10-min test period of Test Method E84. They are not for the 30-min test period of this standard. Such provisions include: X The 2003 and 2006 editions of the NFPA Life Safety Code (NFPA 101) required that there be no continued propagation of fire for materials or products tested in accordance with Test Method E84 in order to achieve a Class A interior finish classification. X Recent editions of the NFPA Life Safety Code (NFPA 101) require a lack of evidence of continued progres- sive combustion for materials or products tested in accordance with Test Method E84. This requirement in the NFPA Life Safety Code (NFPA 101) is for the concept of limited combustible material. Submitter Information Verification Submitter Full Name: Marcelo Hirschler Organization: GBH International Street Address: City: State: Zip: Submittal Date: Thu May 02 18:28:24 EDT 2013 Committee Statement Committee Action: Resolution: Rejected ASTM E2768 states that meeting the 10.5 ft flame advancement criteria represents no progressive combustion.the consensus was that flame spread and progressive combustion are not equivalent. ASTM E2768 is being applied to ignition resistant materials as defined in the Wildland Urban Interface standards. Copyright Assignment I, Marcelo Hirschler, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter into this copyright assignment.

18 Page 10 of 13 8/28/2013 By checking this box I affirm that I am Marcelo Hirschler, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

19 Page 11 of 13 8/28/2013 Public Comment No. 1-NFPA [ Section No [Excluding any Sub-Sections] ] Fire retardant treated wood shall be a wood product impregnated with chemical by a pressure process or other means during manufacture meeting the requirements in through Materials treated by other means after manufacture shall be considered a fire retardant coated material and meet the requirements of fire-retardant coating in Chapter 5. Additional Proposed Changes File Name Description Approved 703_101_5000_Alternate_Release_form_HOLLAND.PDF Alternate Release Form Statement of Problem and Substantiation for Public Comment Small scale testing of coated materials has shown they will not perform as expected. Tests using ASTM E69 and E160 show that the untreated wood will exhibit significant progressive combustion. Submitter Information Verification Submitter Full Name: Joseph Holland Organization: Hoover Treated Wood Products Street Address: City: State: Zip: Submittal Date: Thu Apr 11 18:16:29 EDT 2013 Committee Statement Committee Rejected but see related SR Action: Resolution: SR-2-NFPA Statement: Small scale testing of coated materials has shown they will not perform as expected. Tests using ASTM E69 and E160 show that the untreated wood will exhibit significant progressive combustion. Copyright Assignment I, Joseph Holland, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter into this copyright assignment.

20 Page 12 of 13 8/28/2013 By checking this box I affirm that I am Joseph Holland, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

21 Page 13 of 13 8/28/2013 Public Comment No. 3-NFPA [ Section No. B.1.1 ] There were 2 instances of an item with a unique ID. Only one should exist. ID = /TerraView/Content/ ditamap/2/C xml:=content@/*[2] Statement of Problem and Substantiation for Public Comment NFPA 251 has been withdrawn and is no longer referenced Submitter Information Verification Submitter Full Name: Marcelo Hirschler Organization: GBH International Street Address: City: State: Zip: Submittal Date: Thu May 02 00:43:36 EDT 2013 Committee Statement Committee Action: Rejected but see related SR Resolution: SR-3-NFPA Statement: NFPA 251 has been withdrawn and is no longer referenced Copyright Assignment I, Marcelo Hirschler, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Marcelo Hirschler, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

22 Second Revision No. 1-NFPA [ Section No ] ASTM Publications. ASTM International, P.O. Box C700, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA ASTM D 2898, Standard Test Methods for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing, ASTM D 3201, Standard Test Method for Hygroscopic Properties of Fire-Retardant Wood and Wood-Based Products, 2008a e1. ASTM D 5516, Standard Test Method for Evaluating the Flexural Properties of Fire-Retardant Treated Softwood Plywood Exposed to Elevated Temperatures, ASTM D 5664, Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber, ASTM D 6305, Standard Practice for Calculating Bending Strength Design Adjustment Factors for Fire-Retardant-Treated Plywood Roof Sheathing, ASTM D 6841, Standard Practice for Calculating Design Value Treatment Adjustment Factors for Fire-Retardant-Treated Lumber, ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, 2012c Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Tue May 21 11:42:35 EDT 2013 Committee Statement Committee Statement: standard date update Response Message: Public Comment No. 2-NFPA [Section No ] Ballot Results This item has passed ballot 18 Eligible Voters 4 Not Returned 13 Affirmative All 1 Affirmative with Comments 0 Negative with Comments 0 Abstention Not Returned of 8 5/6/2014 4:37 PM