First Revision No. 7-NFPA [ Global Input ] Submitter Information Verification. Committee Statement

Transcription

1 of 29 6/9/2016 1:42 PM First Revision No. 7-NFPA [ Global Input ] Add comman between "reconstruction or research" throughout the document as follows: "reconstruction, or research" Submittal Date: Fri Apr 08 15:08:15 EDT 2016 : For consistency throughout the document. Response Message:

2 of 29 6/9/2016 1:42 PM First Revision No. 1-NFPA [ New Section after ] When tests are conducted for the purpose of forensic fire reconstruction, or research, this test standard shall apply to any individual fuel package. Global FR-7 Submittal Date: Tue Mar 29 14:06:36 EDT 2016 : When tests are conducted for fire reconstruction or research the items excluded above can be included. Response Message: Public Input No. 11-NFPA [New Section after 1.1.5]

3 of 29 6/9/2016 1:42 PM First Revision No. 2-NFPA [ Section No ] 1.1.5* This test method shall not apply to be used as an alternate compliance test for items for which there is an existing full-scale heat release test such as seating furniture, mattresses, stacking chairs, interior finish, textile wall coverings, or mattress sets. Submittal Date: Tue Mar 29 14:14:33 EDT 2016 : Where a compliance test exists for a specific fuel package, this test should not be used, unless for research needs. Response Message:

4 of 29 6/9/2016 1:42 PM First Revision No. 25-NFPA [ Section No. 2.4 ] 2.4 References for Extracts in Mandatory Sections. NFPA 270, Standard Test Method for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber, edition. Organization: National Fire Protection Assoc Submittal Date: Wed Jun 08 10:42:20 EDT 2016 : Revised edition date. Response Message:

5 of 29 6/9/2016 1:42 PM First Revision No. 3-NFPA [ Section No [Excluding any Sub-Sections] ] The test methods described herein shall use a gas burner to produce a diffusion flame to expose the individual fuel package, except for forensic fire reconstruction, or research, as discussed in Submittal Date: Tue Mar 29 14:39:50 EDT 2016 : When tests are conducted for fire reconstruction or research an alternate ignition source is allowed Response Message: Public Input No. 12-NFPA [Section No [Excluding any Sub-Sections]]

6 of 29 6/9/2016 1:42 PM First Revision No. 4-NFPA [ Section No [Excluding any Sub-Sections] ] The ignition source to be used shall be a gas burner as described in Section 7.1, except as discussed in Submittal Date: Tue Mar 29 14:40:58 EDT 2016 : New section on section to address fire reconstruction and research. Response Message:

7 of 29 6/9/2016 1:42 PM First Revision No. 8-NFPA [ Section No ] Artificial vegetation items shall be tested by placing the item in the center of the a protective barrier covering a load cell (see Section 7.5) and exposing it to the gas burner described in at a 20 kw power level. Submittal Date: Fri Apr 08 15:11:14 EDT 2016 : clarification Response Message: Public Input No. 7-NFPA [Section No ]

8 of 29 6/9/2016 1:42 PM First Revision No. 9-NFPA [ Section No ] For artificial Christmas trees, the vertical centerline of the burner shall be located 150 mm ± 2.5 mm (6 in. ± 0.1 in.) inside the outermost portion of the tree below the position with the highest density of branches and within 100 mm (4 in.) vertically from the bottom branches. Submittal Date: Fri Apr 08 15:11:25 EDT 2016 Committee Statement: Response Message: This proposes a change to the placement of the ignition source when testing artificial trees. Repeat testing experience at UL has shown that placement of the ignition source at 6 inches inside the outermost portion of the tree is not always the location that exposes the highest concentration of tree branches. Depending on the tree construction and configuration, placing the ignition source in a worst case location, where there is the highest concentration of branches, can yield a more representative result. Public Input No. 9-NFPA [Section No ]

9 of 29 6/9/2016 1:42 PM First Revision No. 5-NFPA [ Section No. 5.5 ] 5.5 Natural Christmas Trees To investigate the effect of fire-retardant treatments on natural Christmas trees, the procedure to be followed shall be as stated in through The Christmas tree shall be tested by placing it in the center of a protective barrier, placed above a load cell (see Section 7.5 ), and exposing it to the gas burner described in with the power level described in The vertical centerline of the burner shall be located 150 mm to 2.5 mm (6 in. to 1 in.) inside the outermost portion of the tree and within 100 mm (4 in.) vertically from the bottom branches The gas supplied to the propane gas burner shall be controlled linearly from a zero flow rate to a flow rate of 234 cm 3 /sec (29.8 standard ft 3 /hr) at 2.5 minutes to provide a theoretical net peak heat release rate of 20 kw/m 2 at 2.5 minutes. The gas input shall then be linearly decreased to reach an input of 0 kw (zero flow rate) at 5.0 minutes Size of the test specimen shall be limited to 2.1 m (7 ft). 5.6 Other Individual Fuel Packages For individual fuel packages other than those described in through 5.1.4, the individual fuel package shall be centrally positioned on a weighing platformprotective barrier covering a load cell as described in Section 7.5. When tests are conducted for the purpose of forensic fire reconstruction, or research, the use of a weighing platform shall not be required The weighing platform load cell shall be located centrally under the collection hood The ignition source shall be placed on the protective barrier (see 5.1.3) and in contact with the individual fuel package or located to optimize ignition and fire growth of the individual fuel package, except as discussed in Global FR-7 Submittal Date: Tue Mar 29 14:47:00 EDT 2016 Committee Statement: A procedure for studying fire retardant treatments on natural Christmas trees is being added, based on studies at UL. The research suggested that natural Christmas trees cannot withstand 20 kw for 15 min without reaching flashover and a less severe ignition source is being proposed. Conditioning information may be needed. A task group has been developed to look at the conditioning requirements. The change relating to the weighing platform is intended to provide language consistent with the language in 7.5, where the term weighing platform does not appear. Response Message: The other proposed change to the section on other fuel packages is a correction of the referenced sections. Public Input No. 5-NFPA [Section No. 5.5] Public Input No. 13-NFPA [Section No ]

10 0 of 29 6/9/2016 1:42 PM Public Input No. 15-NFPA [Section No ]

11 1 of 29 6/9/2016 1:42 PM First Revision No. 10-NFPA [ New Section after ] Global FR When tests are conducted for the purpose of forensic fire reconstruction, or research, alternate sample conditioning shall be permitted. Submittal Date: Fri Apr 08 15:22:33 EDT 2016 Committee Statement: Response Message: For fire reconstruction and research tests an alternate conditioning may be required. For example if the purpose of the test is to replicate the burning rate of an item in Alaska in February. Public Input No. 16-NFPA [New Section after 6.1.4]

12 2 of 29 6/9/2016 1:42 PM First Revision No. 12-NFPA [ New Section after ] When tests are conducted for the purpose of forensic fire reconstruction, or research, alternate environmental conditions shall be permitted. Global FR-7 Submittal Date: Fri Apr 08 15:25:01 EDT 2016 : For fire reconstruction and research tests an alternate environment may be required for the purpose of the testing. Response Message: Public Input No. 17-NFPA [New Section after 6.2.3]

13 3 of 29 6/9/2016 1:42 PM First Revision No. 13-NFPA [ Section No. 7.1 ] 7.1 Ignition Source The ignition source for the test shall be a gas burner with a nominal 305 mm 305 mm (nominal 12 in. 12 in.) porous top surface of a refractory material The refractory material through which the gas is supplied shall be a nominal 25 mm (nominal 1 in.) thick porous ceramic fiberboard over a 152 mm ± 5 mm (6 in. ± 0.2 in.) plenum Alternatively, a minimum 102 mm (4 in.) layer of white Ottawa silica sand shall be permitted to be used to provide the horizontal surface through which the gas is supplied, as shown in Figure Figure Gas Burner Using White Ottawa Silica Sand as Refractory Surface The burner with a layer of white Ottawa silica sand as shown in Figure shall be used for individual fuel packages with a potential for dripping.

14 4 of 29 6/9/2016 1:42 PM The refractory material through which the gas is supplied shall be a nominal 25 mm (nominal 1 in.) thick porous ceramic fiberboard over a 152 mm ± 5 mm (6 in. ± 0.2 in.) plenum porous material referenced in Alternatively, shall be a minimum 102 mm (4 in.) layer of white Ottawa silica sand and shall be permitted to be used to provide the horizontal surface through which the gas is supplied, as shown in Figure Figure Gas Burner Using White Ottawa Silica Sand as Refractory Surface The top surface of the burner through which the gas is applied shall be located horizontally 305 mm ± 50 mm (12 in. ± 2 in.) above the protective barrier (see and ) The gas supply to the burner shall be propane of C.P. grade (99 percent purity) or having a net heat of combustion of 46.5 MJ/kg ± 0.5 MJ/kg Flow rates of gas shall be calculated using a net heat of combustion of propane of 85 MJ/m 3 (2280 Btu/ft 3 ) at standard conditions of 101 kpa (14.7 psi) pressure and 20 C (68 F) temperature The gas flow rate shall be metered throughout the test, with an accuracy of at least ±5 percent The heat output to the burner shall be controlled within ±5 percent of the prescribed value The gas supply to the burner shall produce a net heat output of any of the following for a total of 15 minutes: (1) 20 kw (2) 40 kw (3) 70 kw (4) 100 kw (5) 160 kw (6) 300 kw Burner controls shall be provided for automatic shutoff of the gas supply if flameout occurs The burner shall be ignited by a pilot burner or a remotely controlled spark igniter. Global FR-7

15 5 of 29 6/9/2016 1:42 PM When tests are conducted for the purposes of forensic fire reconstruction, or research, an alternate ignition source shall be permitted to be used, as permitted by Submittal Date: Fri Apr 08 15:26:23 EDT 2016 Committee Statement: Response Message: Recent experience has indicated that the porous material to be used needs to be the Ottawa sand. One reason is that it is often not possible to know in advance whether a material to be tested will drip. Therefore discussing what material is to be used for dripping materials is unnecessary. Public Input No. 6-NFPA [Section No. 7.1] Public Input No. 18-NFPA [New Section after 7.1.6]

16 6 of 29 6/9/2016 1:42 PM First Revision No. 14-NFPA [ Section No ] * A nominal 300-watt flood-type, quartz halogen lamp shall be positioned near the floor level and aimed at a level above the burner. The test sample shall be illuminated so that the entire sample is visible for video and still photography. Supplemental Information File Name 289_FR-14_A docx Description Submittal Date: Tue Apr 12 08:02:06 EDT 2016 Committee Statement: Response Message: The important part of this requirement is that the sample is properly lighted. Specifying a specific type of bulb is unnecessary. Most labs are moving to low power LED lights. See attached Word file for Annex A. Public Input No. 19-NFPA [Section No ]

17 A A nominal 300-watt flood-type, quartz halogen lamp shall be positioned near the floor level and aimed at a level above the burner provides adquate illumination.

18 7 of 29 6/9/2016 1:42 PM First Revision No. 15-NFPA [ Section No ] A timer depicting elapsed time shall be included in all videos shall be included in all videos. The timer shall be clearly viewed throughout the test period. The timer shall be permitted to be integral to the video camera. showing the elapsed time throughout the test. Submittal Date: Tue Apr 12 08:03:45 EDT 2016 Committee Statement: Response Message: DVR based video recording systems embed the time in each frame of the digital video file. These video systems often apply the elapsed time automatically when recording is completed. Public Input No. 20-NFPA [Section No ]

19 8 of 29 6/9/2016 1:42 PM First Revision No. 6-NFPA [ Section No ] Prior to ignition of the burner, the The date and laboratory test report identification number shall be recorded on the video. The video shall be started at least included as part of the video recording. The video recording shall be started at least 30 seconds prior to the ignition of the burner, and the video recording shall be continuous for the duration of the test period. Submittal Date: Tue Mar 29 15:36:05 EDT 2016 Committee Statement: Response Message: Many laboratory video recording systems are directly linked to a data acquisition and/or LIMs system. These systems store the test information automatically as part of the test record. The old method of putting a sign in the video is redundant for these systems. Public Input No. 21-NFPA [Section No ]

20 9 of 29 6/9/2016 1:42 PM First Revision No. 16-NFPA [ Section No ] A timer depicting elapsed time shall be included in all photographs. The timer shall be clearly viewed throughout the test period. The timer shall be permitted to be integral to the camera. All photographs shall include a time stamp. Submittal Date: Tue Apr 12 08:04:33 EDT 2016 Committee Statement: Response Message: Digital cameras embed the date and time information as metadata into the digital file. Therefore, the time information is saved by default. When including digital photographs in reports many laboratories use software that include this meta data as the picture caption by default. Public Input No. 24-NFPA [Section No ]

21 0 of 29 6/9/2016 1:42 PM First Revision No. 17-NFPA [ Section No ] Prior to ignition of the burner, the date and laboratory test report identification number shall be photographed. Color slides, photographs, or digital images shall be taken at intervals not exceeding 15 seconds for the first 3 minutes of the test and at intervals not exceeding 30 seconds thereafter for the duration of the test. The date and laboratory test report identification number shall be included as part of the photographic record Color photographs shall be taken at intervals not exceeding 15 seconds, except for forensic fire reconstruction, or research. Global FR-7 Submittal Date: Tue Apr 12 08:05:38 EDT 2016 Committee Statement: Response Message: Many laboratory import the test photographs directly into a LIMs system. These systems store the test information automatically as part of the electronic record. The old method of putting a sign in the picture is redundant for these systems. The requirement to take a picture at 15 second intervals is redundant when HD video is typically being recorded at the same time. Public Input No. 26-NFPA [Section No ]

22 1 of 29 6/9/2016 1:42 PM First Revision No. 18-NFPA [ New Section after ] When tests are conducted for the purpose of forensic fire reconstruction, or research, the use of smoke obscuration instrumentation shall not be required. Global FR-7 Submittal Date: Tue Apr 12 08:09:17 EDT 2016 : For fire reconstruction and research this instrumentation may not be required for the intended purpose of the tests. Response Message: Public Input No. 22-NFPA [New Section after ]

23 2 of 29 6/9/2016 1:42 PM First Revision No. 19-NFPA [ New Section after ] When tests are conducted for the purpose of forensic fire reconstruction, or research, the use of an alternate weighing platform and protective barrier shall not be required. Global FR-7 Submittal Date: Tue Apr 12 08:09:53 EDT 2016 Committee Statement: Response Message: For fire reconstruction and research the weighing platform and the barrier with a lip may not be required for the intended purpose of the tests. For example, a barrier without a lip may be required, or a weighing platform under only a portion of the test sample may be what is important. Public Input No. 23-NFPA [New Section after 7.5.5]

24 3 of 29 6/9/2016 1:42 PM First Revision No. 20-NFPA [ Section No ] The calibration test shall use the standard ignition source intended for the test from 7.1.1, centered under the exhaust hood. Submittal Date: Tue Apr 12 08:10:47 EDT 2016 Committee Statement: Response Message: When an alternate ignition source is used for fire reconstruction tests, the standard gas burner should still be used to calibrate the heat release rate instrumentation. Public Input No. 27-NFPA [Section No ]

25 4 of 29 6/9/2016 1:42 PM First Revision No. 21-NFPA [ Section No ] 8.1.3* The data resulting from a calibration test shall provide the following: output as a function of time, after the burner is ignited, of all instruments used. The output as a function of time, after the burner is activated, of all instruments normally used for the standard fire test The maximum extension of the burner flame, as recorded by still photographs taken at 30-second intervals or by continuous video recording The temperature and velocity profiles across the duct cross-section at the location of the bidirectional probe The differential pressure across the bidirectional probe Submittal Date: Tue Apr 12 08:11:48 EDT 2016 Committee Statement: Remove 1. There is no reason to photograph or record video for every calibration test. Remove 2. There is no practical reason to record velocity and temperature profiles across the duct for every calibration test. Measuring these values would require the installation of an array of temperature and velocity probes across the ducts. These measurements are often performed when commissioning a new hood, but I have never heard of this being done for every test. Remove 3. The raw data from the test will include the bidirectional probe pressure as well as many other instrument readings. There is no reason to single out the bidirectional probe pressure. Response Message: Public Input No. 28-NFPA [Section No ]

26 5 of 29 6/9/2016 1:42 PM First Revision No. 11-NFPA [ Section No ] Description of Individual Fuel Packages. The report shall include the following: (1) Overall description of individual fuel package, along with identifying characteristics or labels (2) Name, thickness, density, and size of the materials used to make up the final package, along with other identifying characteristics or labels (3) Mounting and conditioning of materials, including detailed description of mounting procedure and justification for any variations from end-use installation (4) Layout of individual fuel package and attachments, including appropriate drawings, in fire test area (5) Relative humidity and temperature of the fire test area and the test building prior to and during the test (6) Time between removal from the conditioning room and start of testing (7) Details of the conditioning used Submittal Date: Fri Apr 08 15:23:32 EDT 2016 Committee Statement: Response Message: Conditioning should be reported. New section was added in Chapter 6 related to reconstruction and research. This move makes it more clear that conditioning is required to be reported.

27 6 of 29 6/9/2016 1:42 PM First Revision No. 22-NFPA [ Section No. A ] A This standard is referenced, including requirements for a maximum heat release rate of 100 kw, in several codes where specific individual fuel packages are exposed to a 20 kw ignition source. The applications include foam plastics in signs (NFPA 101, Life Safety Code, and NFPA 5000, Building Construction and Safety Code ), foam plastic displays (NFPA 101 and the International Fire Code), artificial decorative vegetation (International Fire Code), foam components of children s playground structures (NFPA 1, Fire Code, and the International Building Code) and, foam plastics in kiosks (NFPA 101 and International Building Code) and decorative materials (including curtains and drapes) ( International Fire Code ). Submittal Date: Tue Apr 12 08:12:27 EDT 2016 : Clarification. Response Message: Public Input No. 4-NFPA [Section No. A.1.1.1]

28 7 of 29 6/9/2016 1:42 PM First Revision No. 23-NFPA [ New Section after A ] A.5.4 An alternate test method that has been used for the testing and certification of artificial Christmas trees is UL Subject 2358, Outline of Investigation for Fire Tests of Pre-Lit Artificial Seasonal Use Trees and Other Seasonal Decorative Items. The ignition fire source exposure represents a 5-minute growth-and-decay fire challenge that peaks at 20 kw. The conditions of acceptance are as follows: (1) Peak heat release rate does not exceed 100 kw. (2) Total heat release rate does not exceed 15 MJ during the first 10 minutes of the test. (3) The sample does not lose structural integrity such as tipping, falling, or loss of branches during the test. Submittal Date: Tue Apr 12 08:13:06 EDT 2016 Committee Statement: This proposes a change to the placement of the ignition source when testing artificial trees. Repeat testing experience at UL has shown that placement of the ignition source at 6 inches inside the outermost portion of the tree is not always the location that exposes the highest concentration of tree branches. Depending on the tree construction and configuration, placing the ignition source in a worst case location, where there is the highest concentration of branches, can yield a more representative result. This proposal also adds an Annex commentary that UL Outline 2358 has been successfully used to test and certify pre-lit artificial Christmas trees. Response Message: Public Input No. 10-NFPA [New Section after A.5.3.5]

29 8 of 29 6/9/2016 1:42 PM First Revision No. 24-NFPA [ Chapter C ] Annex C Informational References C.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. C.1.1 NFPA Publications. National Fire Protection Association, 1 Batterymarch Park, Quincy, MA NFPA 1, Fire Code, edition. NFPA 101, Life Safety Code, edition. NFPA 265, Standard Methods of Fire Tests for Evaluating Room Fire Growth Contribution of Textile or Expanded Vinyl Wall Coverings on Full Height Panels and Walls, edition. NFPA 286, Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth, edition. NFPA 5000, Building Construction and Safety Code, edition. C.1.2 Other Publications. C ASTM Publications. ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA ASTM E603, Standard Guide for Room Fire Experiments, ASTM E800, Standard Guide for Measurement of Gases Present or Generated During Fires, ASTM E1354, Standard Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen Consumption Calorimeter, ASTM E1537, Standard Test Method for Fire Testing of Upholstered Furniture, ASTM E1590, Standard Test Method for Fire Testing of Mattresses, ASTM E1822, Standard Test Method for Fire Testing of Stacked Chairs, ASTM E2067, Standard Practice for Full-Scale Oxygen Consumption Calorimetry Tests (Annual Book of ASTM Standards, Vol. 4.07), ASTM E2257, Standard Test Method for Room Fire Test of Wall and Ceiling Materials or Assemblies, C ICC Publications. International Code Council, 5203 Leesburg Pike, Suite 600 Falls Church, VA International Building Code (IBC), edition. International Fire Code (IFC), edition. C ISO Publications. International Organization for Standardization, 1, ch. de la Voie-Creuse, Case postale 56, CH-1211 Geneva 20, ISO Central Secretariat, BIBC II, 8, Chemin de Blandonnet, CP 401, 1214 Vernier, Geneva, Switzerland. ISO 9705, Fire Tests Full Scale Room Fire Tests for Surface Products, C UL Publications. Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL UL 1975, Standard for Fire Tests for Foamed Plastics Used for Decorative Purposes, UL Subject 2358, Outline of Investigation for Fire Tests of Pre-Lit Artificial Seasonal Use Trees and Other Seasonal Decorative Items, C U.S. Government Publications. U.S. Government Printing Publishing Office, DC North Capitol Street, NW, Washington, DC Title 16, Code of Federal Regulations, Part 1633.

30 9 of 29 6/9/2016 1:42 PM C Other References. California Technical Bulletin TB 133. Chow, W. K., and K. F. Lai, Optical Measurement of Smoke, Fire and Materials, vol. 16, , Coaker, A. W., M. M. Hirschler, and C. L. Shoemaker, Rate of Heat Release Testing for Vinyl Wire and Cable Materials with Reduced Flammability and Smoke: Small Scale and Full Scale Tests, in Proc. 15th. Int. Conference on Fire Safety, Product Safety Corporation, San Francisco, Ed., C. J. Hilado, January 8 12, pp , Janssens, M. L., Measuring Rate of Heat Release by Oxygen Consumption, Fire Technology, pp , August Janssens, M. L., and W. J. Parker, Oxygen Consumption Calorimetry, in Heat Release in Fires, Ed. V. Babrauskas and S. J. Grayson, Elsevier, London, Chapter 3, pp , McCaffrey, B. J., and G. Heskestad, A Robust Bidirectional Low-Velocity Probe for Flame and Fire Application, Combustion and Flame, vol. 26, no. 1, pp , February Ostman, B., Comparison of Smoke Release from Building Products, Int. Conf. FIRE. Control the Heat...Reduce the Hazard, London, Oct , 1988, Fire Research Station, UK, paper 8. Ower, E., and R. Pankhurst, The Measurement of Air Flow, Pergamon Press, 5th Edition, pp , C.2 Informational References. (Reserved) C.3 References for Extracts in Informational Sections. (Reserved) Submittal Date: Tue Apr 12 08:13:54 EDT 2016 : Referenced current SDO names, addresses, standard names, numbers, and editions. Response Message: Public Input No. 1-NFPA [Chapter C] Public Input No. 3-NFPA [Section No. C.1.2.1] Public Input No. 2-NFPA [Section No. C.1.2.2] Public Input No. 8-NFPA [Section No. C.1.2.4]