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1 Page 1 of 19 Committee Input No. 14-NFPA [ Global Input ] Type your content here... Supplemental Information File Name IndoorDraftforCI.docx Description This committee input would be added to new Chapter 18 and would cover indoor membrane enclosures. Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Mon Mar 18 14:24:39 EDT 2013 Committee Statement

2 Page 2 of 19 Committee The origination of this proposal came from the current use of these Statement: enclosures in the Marina Industry. Marina spray painting is occurring in the US and throughout the world in temporary membrane enclosures outdoors and within buildings. There is a desire and need to establish a standardized practice for fire safety officials and users. The outdoor provisions being put forth in a new chapter for safe membrane enclosure spray painting contains a set of checks and balances that are greater than what is normally found in a spray paint booth that contains a suppression system. The intent is to mitigate the potential for fire. The challenge is the placement of these outdoor enclosures with all the checks and balances present, INSIDE of a building. They must also insure that the building is not at greater risk in a fire event. The presence of fire sprinklers in the building to protect the building and the commodities being placed within it must be capable of reaching within the membrane enclosure to contain and possibly extinguish a fire. Testing of a membrane enclosure using a crib fire and fire sprinklers outside the enclosure were completed and recorded. A video of this testing can be found at The test was modeled around the marine industry use of fire resistive shrink wrap material for an enclosure with fire sprinklers designed for Extra Hazard Group 2. A small TG of NFPA 13 members did a preliminary review of the proposal for indoor membrane enclosures within buildings with sprinklers and was concerned that the membrane would create an obstruction to sprinkler discharge. The sprinkler task group indicated that while the small scale test showing the behavior of the membrane under test conditions was a start, that additional full scale testing may be needed to look at factors such as ceiling and sprinkler height, clearance between the membrane and sprinkler system and delivered density, ignition locations, obstructions under the membrane and validation or justification of the fire source. The Committee and membrane task group will continue working with the NFPA 13 committee on the issues of concern. Response Message: Ballot Results This item has not been balloted

3 This additional material would be added to the First Revision 13, new Chapter 18, to cover indoor membrane enclosures Temporary membrane enclosures for spray painting boats in marina s shall be permitted to be installed in buildings provided all of the requirements of this chapter are complied with in design, installation, and conduct of spray paint operations within the enclosure Only shrink wrap material passing NFPA 701 Test 2 requirements shall be used for spray painting boats in marina buildings * Buildings in which temporary membrane enclosures are installed shall have a minimum of 25% of the exterior walls open and unobstructed. A The openness requirement serves two purposes. First it helps to insure that any flammable vapors released as a part of spray painting are readily diluted while reducing the possibility of concentrations of flammable vapors in the building. Second, the openness requirement gives better access to responding firefighters in the event of a fire emergency Buildings in which temporary membrane enclosures are installed shall be provided with Automatic Sprinkler Systems in accordance with Section The automatic sprinkler system shall be designed for Extra Hazard (Group 2) occupancies, as defined in NFPA 13, Standard for the installation of Sprinkler Systems.

4 Page 3 of 19 Committee Input No. 95-NFPA [ Global Input ] Add the drawing in new Chapter 18 to go along with FR 13. Supplemental Information File Name Open 33FCf18-7.pdf Description Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 10:41:09 EDT 2013 Committee Statement Committee Statement: Response Message: The committee is considering adding the attached drawing to go with new Chapter 18 on membrane enclosures. Ballot Results This item has not been balloted

5 Extent of the Class I, Division 2 Membrane enclosure (support structure not shown) 1525 mm (5 ft) Ventilation exhaust Workpiece Class I, Division 1, within the membrane enclosure Air intake 1525 mm (5 ft) PLAN VIEW Extent of the Class I, Division mm (5 ft) Class I, Division mm (5 ft) Membrane enclosure (support structure not shown) Ventilation exhaust Workpiece Air intake ELEVATION

6 Page 4 of 19 Committee Input No. 88-NFPA [ Section No ] Combustible Liquid. Any liquid that has a closedcup closed-cup flash point at or above 100 F (37.8 C), as determined by the test procedures and apparatus set forth in 1 Section [ of NFPA 30]. Combustible liquids are classified as Class II or Class III according to Section 4.3 of NFPA 30 as follows: (1) Class II Liquid any liquid that has a flash point at or above 100 F (37.8 C) and below 140 F (60 C); (2) Class IIIA any Class III Liquid- Any liquid that has a flash point at or above 140 F (60 C) (a) Class IIIA Liquid Any liquid that has a flash point at or above 140 F (60 C), but below 200 F (93 C); (3b)Class IIIB Liquid any Any liquid that has a flash point at or above 200 F (93 C). [30, ] Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 08:59:12 EDT 2013 Committee Statement Committee Statement: Response Message: The definition has been slightly revised to match that in NFPA 30. This definition will also be correlated with NFPA 34 so that both documents have the same definitions. Ballot Results This item has not been balloted

7 Page 5 of 19 Committee Input No. 89-NFPA [ Section No ] Flammable Liquid. Any liquid that has a closed-cup flash point below 100 F (37.8 C), as determined by the test procedures and apparatus set forth in 1 Section [ of NFPA 30 ]. Flammable liquids are classified as Class I as follows: Class ILiquid any liquid that has a closed-cup flash point below 100 F (37.8 C) and a Reid vapor pressure not exceeding 40 psia ( mm Hg) at 100 F that does not exceed an absolute pressure of 40 psi (276 kpa) at 100 F (37.8 C 8 C ), as determined by ASTM D 323, Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method). Class I Flammable liquids are further classified as follows: subclassified in accordance with the following: (1) Class IA liquids Liquids those liquids that have flash points Any liquid that has a flash point below 73 F (22.8 C) and a boiling points point below 100 F (37.8 C); (2) Class IB liquids those liquids that have flash points Any liquid that has a flash point below 73 F (22.8 C) and a boiling points point at or above 100 F (37.8 C); (3) Class IC liquids those liquids that have flash points Any liquid that has a flash point at or above 73 F (22.8 C), but below 100 F (37.8 C). [30, ] Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 09:18:31 EDT 2013 Committee Statement Committee Statement: Response Message: The definition has been slightly revised to match that in NFPA 30. This definition will also be correlated with NFPA 34 so that both documents have the same definitions. Ballot Results This item has not been balloted

8 Page 6 of 19 Committee Input No. 90-NFPA [ Section No ] Electrical wiring and utilization equipment located outside, but within 6100 mm (20 ft) horizontally and 3050 mm (10 ft) vertically, of an unenclosed spray area and not separated from the spray area by partitions extending to the boundaries of the area designated as Division 2, Zone 2; or Zone 22 in Figure shall be suitable for Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 locations, whichever is applicable. Figure Electrical Area Classification for Unenclosed Spray Areas. Supplemental Information File Name Open 33FCf pdf Description Submitter Information Verification

9 Page 7 of 19 Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 10:11:50 EDT 2013 Committee Statement Committee Statement: Response Message: Ballot Results This item has not been balloted Committee is considering revising drawings as attached. Hard lines removed.

10 Spray area 6100 mm (20 ft) TOP (PLAN) Roof 3050 mm (10 ft) Spray area FRONT (ELEVATION) Class I, Division 1; Class I, Zone 1; Class II, Division 1; or Zone 21 Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22

11 Page 8 of 19 Committee Input No. 91-NFPA [ Section No ] If spray application operations are conducted within a closed-top, open-face or open-front booth or room, as shown in Figure 6.5.2, any electrical wiring or utilization equipment located outside the booth or room but within 915 mm (3 ft) of any opening shall be suitable for Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 locations, whichever is applicable. Figure Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 Locations Adjacent to an Open-Face or Open-Front Spray Booth or Spray Room. Supplemental Information File Name Open 33FCf pdf Description Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 10:13:35 EDT 2013 Committee Statement Committee Statement: Committee is considering revising drawing as attached. Response Message: Ballot Results This item has not been balloted

12 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius Conveyor opening Open face

13 Page 9 of 19 Committee Input No. 92-NFPA [ Section No ] If spray application operations are confined to an enclosed spray booth or room, electrical area classification shall be as follows: (1) The area within 915 mm (3 ft) of any opening shall be classified as Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 locations, whichever is applicable, as shown in Figure (2) Where exhaust air is recirculated and all requirements of Section 7.5 are met, both of the following shall apply: (a) (b) The interior of any recirculation path from the secondary particulate filters up to and including the air supply plenum shall be classified as Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 locations, whichever is applicable. The interior of fresh air supply ducts shall be unclassified. (3) Where exhaust air is not recirculated, the interior of fresh air supply ducts and fresh air supply plenums shall be unclassified. Figure Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 Locations Adjacent to an Enclosed Spray Booth or Spray Room. Supplemental Information File Name Open 33FCf06-5-4_version1.pdf Open 33FCf06-5-4_version2.pdf Description Submitter Information Verification

14 Page 10 of 19 Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 10:16:48 EDT 2013 Committee Statement Committee Statement: Committee is considering revising drawing as attached. Response Message: Ballot Results This item has not been balloted

15 915 mm (3 ft) radius Extent of Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 area 915 mm (3 ft) radius Enclosed spray booth or room (Class I, Division 1; Class I, Zone 1; Class II, Division 1; or Zone 21 within) PLAN VIEW AT CEILING LEVEL 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius ELEVATION

16 915 mm (3 ft) radius Extent of Class I, Division 2; Class I, Zone 2; Class II, Division 2; or Zone 22 area 915 mm (3 ft) radius Enclosed spray booth or room (Class I, Division 1; Class I, Zone 1; Class II, Division 1; or Zone 21 within) PLAN VIEW AT CEILING LEVEL 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius 915 mm (3 ft) radius ELEVATION

17 Page 11 of 19 Committee Input No. 93-NFPA [ Section No ] Electrical wiring and utilization equipment installed in these areas shall be suitable for the location, as shown in Figure Figure Electrical Area Classification for Class I Liquid Operations Around Open Containers, Supply Containers, Waste Containers, Spray Gun Cleaners, and Solvent Distillation Units. Supplemental Information File Name Description 33FCf _version1.pdf Version 1 33FCf version2.pdf Version 2 Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 10:18:52 EDT 2013 Committee Statement Committee Statement: Committee is considering revising drawing as attached. Response Message: Ballot Results This item has not been balloted

18 610 mm (2 ft) 915 mm (3 ft) 460 mm (18 in.) 3050 mm (10 ft) Class I, Division 1 or Zone 0 (e.g., vapor space in container) Class I, Division 1 or Zone 1 Class I, Division 2 or Zone mm (10 ft) Pit or trench

19 610 mm (2 ft) 915 mm (3 ft) 460 mm (18 in.) 3050 mm (10 ft) Class I, Division 1 or Zone 0 (e.g., vapor space in container) Class I, Division 1 or Zone 1 Class I, Division 2 or Zone mm (10 ft) Pit or trench

20 Page 12 of 19 Committee Input No. 38-NFPA [ Section No ] The automatic fire protection system shall be permitted to be, and shall be installed in accordance with, any of the following: (1) An automatic water sprinkler system that meets all applicable requirements of NFPA 13, Standard for the Installation of Sprinkler Systems (2) An automatic foam water sprinkler system that meets all applicable requirements of NFPA 16, Standard for the Installation of Foam-Water Sprinkler and Foam-Water Spray Systems (3) A carbon dioxide extinguishing system that meets all applicable requirements of NFPA 12, Standard on Carbon Dioxide Extinguishing Systems (4) A dry chemical extinguishing system that meets all applicable requirements of NFPA 17, Standard for Dry Chemical Extinguishing Systems (5) A gaseous agent extinguishing system that meets all applicable requirements of NFPA 2001, Standard on Clean Agent Fire Extinguishing Systems (6) A water mist or hybrid water mist fire protection system that meets the applicable requirements of NFPA 750, Standard on Water Mist Fire Protection Systems. Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Tue Mar 19 21:51:41 EDT 2013 Committee Statement

21 Page 13 of 19 Committee Statement: NFPA 750 is currently under revision. The committee is considering adding water mist and hybrid water mist fire protection systems into applicable sections of NFPA 33 however there are several concerns that should be addressed. Water mist systems are currently not listed for use in spray booths although they are listed for use in occupancies similar to mixing rooms. The committee also decided there was a potential conflict with NFPA 750 and the term "hybrid water mist" as suggested in Public inputs 78, 76, 85, and 77. Response Message: Public Input No. 76-NFPA [Section No ] Ballot Results This item has not been balloted

22 Page 14 of 19 Committee Input No. 35-NFPA [ New Section after ] 9.9 Water Supply 9.9.1? The water supply shall be sufficient to supply all sprinklers likely to open in any one fire incident without depleting the available water for use in hose streams ? Where sprinklers are installed to protect spray areas and mixing rooms only, water shall be permitted to be supplied from domestic water systems, provided the domestic supply can meet the demand for the design criteria of Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Tue Mar 19 14:07:09 EDT 2013 Committee Statement Committee Statement: Response Message: The committee will have a task group review water supply concerns within NFPA 33 and will place all existing requirements (9.4.3 and 9.4.4) into a new section 9.9 to be added. In addition the task group is focusing on including requirements for interconnected water based protection systems. The task group will address concerns raised in Public Inputs 19 and 20. Ballot Results This item has not been balloted

23 Page 15 of 19 Committee Input No. 40-NFPA [ New Section after ] Add a new section 9.10 after the new section 9.9 using attached material. Supplemental Information File Name CIChapter9.10.docx Description This is a committee input to add a section 9.10 after 9.9 (added this revision). Please use inserted text. Submitter Information Verification Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Tue Mar 19 23:05:50 EDT 2013 Committee Statement Committee Statement: Response Message: The committee puts forth the following language to solicit public input to further develop new language to address protection for types of filtration systems not previously addressed by the standard. This also addresses PI 79. Ballot Results This item has not been balloted

24 Create CI 9.10 Protection for Dry Particulate Scrubbers The scrubbing material shall be non-combustible and the concentration in the scrubber shall be maintained that in combination with the paint collected the mixture shall be non-combustible Where the filtration media is combustible, the filtration media shall be protected by an approved fire protection system both upstream and downstream The automatic fire protection system shall be permitted to be, and shall be installed in accordance with, any of the protection systems described in Access for inspection and cleaning of sprinklers shall be provided Sprinklers shall be protected against overspray residue and the dry particulate, either by location or covering, so that they will operate quickly in event of fire Sprinklers shall be permitted to be covered only by cellophane bags having a thickness of 0.08 mm (0.003 in.) or less or by thin paper bags. These coverings shall be replaced frequently so that heavy deposits of residue do not accumulate Sprinklers that have been painted or coated by overspray or residues shall be replaced with new sprinklers The scrubber shall be designed to direct the flow from the fire-extinguishing system to an approved location or shall be designed to contain the flow for a period of 20 minutes Interlocks. In addition to the requirements of 9.2.1, activation of the automatic fire protection system shall automatically accomplish all of the following: (1) Shut off all compressed air to the filter cleaning system (2) Stop the dry particulate material delivery and removal system 9.11 Protection for Electrostatic Precipitator Scrubbers (Reserved).

25 Page 16 of 19 Committee Input No. 39-NFPA [ Section No ] Automated liquid electrostatic spray application equipment that is unlisted shall be protected further by the following: (1) In addition to meeting the requirements in 9.8.1, the optical flame detection system shall also activate one of the following over each zone in which fire has been detected: (2) An open head deluge system designed to discharge a minimum density of 24.4 mm/min (0.6 gpm/ft 2 ) (3) A carbon dioxide extinguishing system (4) A dry chemical extinguishing system (5) A gaseous agent extinguishing system (6) A water mist or hybrid water mist fire protection system (7) Manual activation stations shall be installed. At least one such station shall be within ready access of operating personnel. If access to this station is likely to involve exposure to danger, an additional station shall be located adjacent to an exit from the area. These devices shall activate the fire protection system as specified in 9.8.2(1) and accomplish the requirements of and (2). (8) A wet pipe sprinkler system shall also be provided throughout the spray booth. This system shall meet all the applicable requirements of NFPA 13, Standard for the Installation of Sprinkler Systems for Extra Hazard (Group 2) occupancies. (9) Automatic electrostatic equipment enclosures inside the booth systems shall be protected with an approved automatic fire protection system. Activation of this system shall automatically accomplish the requirements of and (2). Submitter Information Verification

26 Page 17 of 19 Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Tue Mar 19 22:00:02 EDT 2013 Committee Statement Committee Statement: NFPA 750 is currently under revision. The committee is considering adding water mist and hybrid water mist fire protection systems into applicable sections of NFPA 33 however there are several concerns that should be addressed. Water mist systems are currently not listed for use in spray booths although they are listed for use in occupancies similar to mixing rooms. The committee also decided there was a potential conflict with NFPA 750 and the term "hybrid water mist" as suggested in Public inputs 78, 76, 85, and 77. Response Message: Public Input No. 77-NFPA [Section No ] Ballot Results This item has not been balloted

27 Page 18 of 19 Committee Input No. 87-NFPA [ Section No. C.2.1 ] C.2.1 Minimum Explosive Concentration (MEC). Specifications usually available from the manufacturers of coating powders can be used to establish the MEC. If that specification is not available (or if the system is projected for use with a variety of coating powders), a figure of g/m 3 (30 15 oz/1000 ft 3 ) can be used. This is considered representative of the lowest MEC to be found among common coating powders. (See Table C.2.1.) Table C.2.1 Representative Test Data on Specific Powders Type Sample No. MEC Autoignition Temperature g/m 3 oz/1000 ft 3 C F Epoxy Polyester * Polyolefin *Same as Sample 1 but with metallic component in pigment. Note: Data determined using FM Global 3.7-Liter 20 liter Kuhner Dust Explosion Test Apparatus, a modified Hartmann Test Apparatus.. Testing in accordance with ASTM E Add new reference : ASTM E (2007) Standard Test Method for Minimum Explosible Concentration of Combustible Dusts Supplemental Information File Name Open Section_C.2.1_and_Table_C.2.1_NFPA_33.docx Description Submitter Information Verification

28 Page 19 of 19 Submitter Full Name: [ Not Specified ] Organization: [ Not Specified ] Street Address: City: State: Zip: Submittal Date: Thu May 16 08:52:30 EDT 2013 Committee Statement Committee Statement: Response Message: Ballot Results In section C.2.1 the generic MEC value of 30 g/m3 is based on the samples tested and displayed in Table C.2.1. A review of FM Global s database of dust samples similar in composition to powder coating materials shows a number of MEC values less than 30 g/m3. Some of the MEC values are as low as 8-10 g/m3. However, not all of the samples in FM Global s database that were reviewed can be directly related to powder coating materials. A value lower than 30 g/m3 is probably warranted but without updating the information in Table C.2.1 it is uncertain how much lower. A compromise of 15 g/m3 is suggested as a place holder until the values in table C.2.1 can be updated. Table C.2.1 is based on a number of samples tested by FM Global in the 3.7 Liter Hartmann Test Apparatus. The samples tested were a reasonable cross section of the common materials used at the time (prior to 1989). In the intervening years the accepted test method for determining MEC has changed as well as the common powder coating materials. The table should be updated with new samples covering a boarder range of common powder coating materials with their MEC s determined using the current standardized test method (using a 20 liter sphere). FM Global has agreed to undertake the MEC testing for 15 new powder coating samples to replace the existing data points in Table C.2.1. AkzoNobel has agreed to donate the 15 samples to be tested. The testing will be undertaken over the next 6 months. The values in the table will be updated once all the testing has been completed. Once Table C.2.1 has been updated the generic MEC value in section C.2.1 can be set based on the results. This item has not been balloted

29 NFPA [Section C.2.1 & Table C.2.1] C.2.1 Minimum Explosive Concentration (MEC). Specifications usually available from the manufacturers of coating powders can be used to establish the MEC. If that specification is not available (or if the system is projected for use with a variety of coating powders), a figure of g/m 3 (30 15 oz/1000 ft 3 ) can be used. This is considered representative of the lowest MEC to be found among common coating powders. (See Table C.2.1.) Table C.2.1 Representative Test Data on Specific Powders Type Sample No. MEC Autoignition Temperature g/m3 oz/1000 ft3 C F Epoxy Polyester Polyolefin Note: Data determined using FM Global 3.7 Liter Dust Explosion Test Apparatus, a modified Hartmann Test Apparatus 20 Liter Kuhner Dust Explosion Test Apparatus. Testing in accordance with ASTM E Reference to add to Chapter 2: ASTM E (2007) Standard Test Method for Minimum Explosible Concentration of Combustible Dusts Statement of Problem and Substantiation for Public Input In section C.2.1 the generic MEC value of 30 g/m 3 is based on the samples tested and displayed in Table C.2.1. A review of FM Global s database of dust samples similar in composition to powder coating materials shows a number of MEC values less than 30 g/m 3. Some of the MEC values are as low as 8 10 g/m 3. However, not all of the samples in FM Global s database that were reviewed can be directly related to powder coating materials. A value lower than 30 g/m 3 is probably warranted but without updating the information in Table C.2.1 it is uncertain how much lower. A compromise of 15 g/m 3 is suggested as a place holder until the values in table C.2.1 can be updated. Table C.2.1 is based on a number of samples tested by FM Global in the 3.7 Liter Hartmann Test Apparatus. The samples tested were a reasonable cross section of the common materials used at the time (prior to 1989). In the intervening years the accepted test method for determining MEC has changed as well as the common powder coating materials. The table should be updated with new samples covering a boarder range of common powder coating materials with their MEC s determined using the current standardized test method (using a 20 liter sphere). FM Global has agreed to undertake the MEC testing for 15 new powder coating samples to replace the existing data points in Table C.2.1. AkzoNobel has agreed to donate the 15 samples to be tested. The testing will be undertaken over the next 6 months. The values in the table will be updated once all the testing has been completed. Once Table C.2.1 has been updated the generic MEC value in section C.2.1 can be set based on the results. Submitter Information Verification Amy Brown, FM Global