California Supply Chain Transparency Act. LP FlameBlock Fire-Rated Sheathing helps meet fire codes. Latch retraction options are factory supplied as part of the exit device or may be certified as an accessory for use with single-point locks or latches and fire exit hardware (GWVW) category. UL certified panic hardware includes the UL symbol, LISTED or CERTIFIED, and Panic Hardware. 2023 James Hardie Building Products Inc. All Rights Reserved. Standard 20-minute type window frames consist of formed steel sheet, reinforced as required, with a stationary-type single sash or with stationary type multiple sashes. While test methods such as ASTM E119 define procedures for evaluating the fire resistance properties of concrete masonry assemblies, including those constructed using unconventional constituent materials, there has historically been no defined procedure for applying the results of ASTM E119 testing to standardized calculation procedures available through ACI/TMS 216.1. For example, you can have 6 studs in UL designs, You can add wood structural panels to one side or both. Model codes include specific requirements for exit door hardware which includes the hardware mounting height, locks and latches, special locking arrangements, and delayed egress locks, and other locking arrangements. The wall partition wood studs are to be framed by with a second 2 by 4 in. The calculation method is fully described in ACI/TMS 216.1 and IBC Section 722, and determines fire resistance ratings based on the equivalent thickness of concrete masonry units and the aggregate types used to manufacture the units. Itstatesthat unless otherwise specified in the individual designs or certification information,fire-resistive designs and ULCertifiedmaterials are investigated with the understanding that their use is limited to interior applications. Based on the results of this testing, an expression can be developed in accordance with this industry practice that permits the fire resistance of units produced with such aggregates to be calculated for interpolated values of equivalent thickness and proportion of non-listed aggregate. These include rolling steel, special-purpose, chute type, sliding type, swinging type, and freight or passenger elevator type fire doors. These frames should be glazed with Classified Fire-protection Rated Glazing Materials (KCMZ). ASTM International, Inc., 2017. More information on listing services for fire ratings is provided in NCMA FAQ 21-14,What is the difference between fire resistance ratings for masonry assemblies obtained through IBC versus a listing service such as UL or FM? Can plywood panels be added to a UL fire-resistance rated wall assembly to increase structural stability? Supplementary information about Fire and Sound Rated Assemblies including UL Types. Standard Methods for Sampling and Testing Concrete Masonry Units, ASTM C140/C140M-18. Concern about potential damage to building exteriors caused by high wind events such as hurricanes and tornadoes has spurred many states, including Florida and Texas, as well as the model codes to adopt regulations to increase resilience from windborne debris and the effects of high winds and static loads. Elevator door frames are intended for use with sliding freight or passenger elevator fire door designs for use in dry wall or masonry shaft construction, as identified in the individual certifications for door frames. In many cases, drywall, plaster or stucco finishes are used on concrete masonry walls. per stud (885 plf). Use UL design W419 for 1- through 4-hour shaftwall systems, or UL design V497 for 1- and 2-hour assemblies using Type X. gypsum board on one side of minimum 3 " steel studs. Nonbear ing Wall * Indicat es such pr oducts shall bear the UL or cUL Cer tification Mark for. Click the link above and go to Section 3.5 of NER-405. system instead of the steel-stud framing. Sizes & Shapes All blocks are available in Westbrook Block's full range of colors and architectural finishes. thick structural sheathing (plywood) complying with DOC PS1 or PS2, or APA Standard PRP-108, manufactured with exterior glue, may be applied horizontally or vertically to the . 16 in. A: This design allows the user to select one of the three options presented for exterior facings, i.e., items 6, 7 or 8. Fire and smoke protection Building codes rely on fire and smoke protection features to safeguard the public and emergency responders from fire and smoke hazards. These may be driven by code requirements, the needs of the occupants or by other means. Eliminating the need for intumescent materials results in a lower overall head of wall material cost while providing smoke, fire and even sound containment. These doors are intended to be installed in a Certified or Listed fire door frame and provided with a UL Certified or Classified Category H gasketing material for fire doors. USG provides resources here for our UL wall assemblies for seamless integration into any construction project. Roof-Ceiling Assemblies All-new fire-rated roof-ceiling assembly files. UL certifies products for use in these applications under the Leakage-rated Door Assemblies (OPBW) category. Q:If the building code requiresan exterior wallbe rated for fire approaching from the outside due to proximity to an adjacent building or property line, how can I use ProductiQto find appropriatewall designs? Products not bearing a UL Mark are not considered to be UL Certified. Doors, Windows and Related Hardware Marking and Application Guide UL and the UL logo are trademarks of UL LLC 2020, Fire Door Assemblies and Window Assemblies, Freight-elevator-type Fire Door Retrofit Parts, Swinging-type Fire Doors, Positive-pressure Tested, Finishers of Fire Door Frames and Fire Window Frames, Accessories for Single-point Locks and Latches and Fire-exit Hardware, Flush and Surface Bolts, Self-latching Type, Electrically-controlled Single-point Locks and Latches, Miscellaneous Fire Door Accessories, Positive-pressure Tested, Cladding Materials for Fire Doors and Frames, Gasketing and Edge-sealing Materials for Fire Doors, Positive-pressure Tested, Combination Fire Door Closers and Holders, Fire Door Operators with Automatic Closers, Retrofit Rolling Steel Fire Door Operators, Door Operators for use in Hazardous Locations, Door Holders for use in Hazardous Locations, Accessories for Windstorm-rated Swinging Doors, Glass Light Frames for Windstorm-rated Doors, AMCA 540, ASTM E283, ASTM E331, ASTM E330, ASTM E1886, ASTM E1996, TAS 201/202/203, AAMA/WDMA/CSA 101/I.S.2/A440, and/or ICC 500, Products for Use in Windstorm-rated Assemblies, The UL symbol with the words CERTIFIED or CLASSIFIED, D indicates the glazing is suitable for use in fire door assemblies, H indicates compliance with the hose stream requirements of the standard, NH indicates the glazing has not been subjected to the hose stream requirements of the standard, T indicates the glazing material has a temperature rating, which is defined as a maximum unexposed surface temperature of 450F when measured at 30 minutes during the standard fire test, NT indicates the glazing material does not have a temperature rating, which is defined as a maximum unexposed surface temperature in excess of 450F when measured at 30 minutes during the standard fire test, xxx indicates the fire-protection-rating period in minutes, The UL symbol with the words CERTIFIED and SAFETY (when using the Alternate UL Mark, the UL symbol with the word CLASSIFIED above the UL symbol), Where OH indicates compliance with the fire and hose stream requirements of the standard and xxx indicates the fire-protection-rating period in minutes, Hourly rating (e.g. Panic Hardware (FVSR) This category covers devices intended for mounting on or integral with outward-swinging doors to facilitate the safe egress of persons in case of emergency. METHODS OF DETERMINING FIRE RESISTANCE RATINGS. Fire testing of concrete masonry beams and lintels evaluates the ability of the member to sustain design loads under standard fire test conditions. This recommended approach can also be used by code authorities during the building plan review and final approval process. UL Certified products are eligible to bear one of the following Certification Marks, namely the UL Certified Mark, UL Listing Mark, or UL Classification Mark. 20-minute type door frames fire tested without hose stream are intended for use with 20-minute rated door assemblies fire tested without hose stream. Therefore, twoseparate tables are required. Within the "Keyword" dialog box, type in "Exterior". Have questions? This concept is often referred to as compartmentation (e.g. Fire Wall Assemblies JamesHardie Fire-Resistance Rated Wall Assemblies Warnock Hersey Fire-Resistance Rated Wall Assemblies Warnock Hersey Product Listings Standards products are certified against ASTM, ISO, EN, CAN/CGSB, CAN/ULC 1-Hour Fire Resistive Rated Wall Assemblies Products for use in Windstorm Rated Assemblies (ZHLL) This category covers products intended for use in windstorm-rated assemblies (ZHLA). However frames may or may not be marked with hourly ratings. Door frames bearing a UL Certification Mark without an hourly rating and provided with steel stud or wood stud anchors can be used in conjunction with fire doors rated up to 1-1/2 hours and installed in steel stud and wood stud walls steel stud cavity walls, steel stud shaft walls and wood stud cavity walls protected with gypsum board, having fire resistance ratings not less than the rating of the door nor more than 2 hours. Standard Specification for Perlite Loose Fill Insulation, ASTM C549-18. The artificial seal may be any material, such as an impermeable plastic sheet or tape. Units manufactured with a combination of aggregate types are addressed by footnote C, which may be expressed by the following equation (see also the blended aggregate example, below): Tr = (T1 x V1) + (T2 x V2) + + (Tn x Vn). Latch retraction options are only permitted if they are electrically operated and can be connected to an initiating device or fire alarm control panel. 5.1.5.3.2. Please check your email. with three layers of " Type X (, gypsum board on the underside of the framing. 2023 USG Corporation. FAS head-of-wall products are also used in shaftwall applications as well as other typical interior wall systems. See how we put safety science to work to help create a safer, more secure and sustainable world for you. The calculated fire resistance method is based on extensive research and testing of concrete masonry walls. The manufacturer and model number of the frame, wall type, opening size, maximum design pressure and maximum impact energy resistance are identified in each Classification. If its UL Solutions and newsworthy, its here. Several options for 1- and 2-hour fire resistance-rated, wood-frame wall assemblies that could be useful for shafts are presented below. Drawings are included as part of a rated assembly, along with descriptions of individual components and construction details. Fire-resistance rated glazing tested as part of a fire-resistance rated wall assembly in accordance with the Standard for Fire Tests of Building Construction and Materials, UL 263 (ASTM E119), is covered under the Fire-resistance Rated Glazing Materials (CCET) category. Fire exit hardware that is additionally investigated to the BHMA A156.3 Exit Devices standard is so indicated in the individual Listings. These fire rated metal panel . The product markings identified in this Guide do not include every possible marking that could be provided either on a product, product packaging or in its installation instructions, but provides an indication of the type of text and location of markings that address features that may be critical in determining if a product is certified for a particular application. See Fire Door Glass Light Frames (GVVX) and Fire-protection Rated Glazing Materials (KCMZ). I also looked at table 721.1 in CBC and there is nothing in their assemblies . Fire-protection rated glazing materials are intended for installation in fire windows, fire doors, and fire door frames with transoms and/or sidelights that are provided with suitable glazing frame members. . Use the link below instead. Products bearing any of these UL marks comply with the definition of a listed product in the code, and should be considered to be listed. Learn how to install fiberglass batts, rolls and other insulation into attics, walls, and more. See General Information for Fire-resistance Ratings - ANSI/UL 263 Certified for United S tates. Fire window frames intended to be installed in drywall construction, and supported directly by a noncombustible floor bear the supplemental marking Fire Window Frame for Installation on Noncombustible Floor with Base Anchor Provided on Frame.. Next, choose the section "Fire Rated Roofs, Walls, Floors, Beams and Columns." 3. 3. The Gasketing Materials for Fire Doors (GVWZ) category includes gasket materials investigated in accordance with the Standard for Fire Tests of Door Assemblies, UL 10B. ASTM International, Inc., 2017. A fire partition is the least restrictive of the four fire-rated wall assemblies mentioned. Care should be taken to ensure that products used in the assembly include appropriate UL Certification Markings, as described in the design. Some manufacturers can provide labeled transom panel frames for use with doors rated up to and including 3 hours as indicated in the individual certifications. thick. For more information on steel columns protected by concrete masonry, see TEK 7-6A, Steel Column Fire Protection (ref. Or in other situations, you might encounter a product bearing a listing label that may have subsequently been modified in the field, and now you question whether or not the product still complies with the applicable standard. 4), which measures four performance criteria, as follows: resistance to the transmission of heat through the wall assembly; The most common fire-rated assemblies are floor/ceiling systems and wall assemblies. Door and window openings in these assemblies are required to be protected in accordance with the opening protective requirements in the code, and they may be limited to a maximum individual size, maximum area and aggregate width. Code Requirements for Determining Fire Resistance of Concrete and Masonry Construction Assemblies, ACI/TMS 216.1-14. Standard Specification for Calcium Silicate Brick (Sand-Lime Brick), ASTM C73-17. This rating is intended for use in determining compliance with the temperature-rise requirements contained in the International Building Code, NFPA 101, and NFPA 5000. veneer, non-load bearing exterior wall assembly. 4. Artificial bottom seals UL 1784 allows for an artificial seal to be applied to the bottom 6 inches of the test sample in order to obtain information on the extent of air leakage through the perimeter of a test sample without the sample leakage being influenced by the clearance at the bottom of the door. The 2012 International Building Code (IBC) introduced requirements to protect the voids where a fire barrier wall intersects the lower side of a non-fire-resistance rated roof assembly. 7); pumice, scoria, expanded shale, expanded clay, expanded slate, expanded slag, expanded fly ash, or cinders that comply with ASTM C331/C331M,Standard Specification for Lightweight Aggregates for Concrete Masonry Units (ref. Most of these products (except leaf style commercial hinges) are required to be Certified in accordance with UL standards. Depending on the rating, sealing the edges of the wall may also be specified. It can span 8' from wall to wall or can be used with the hanger assembly for larger spans. Quality engineered thermal and acoustical fiberglass batt insulation with innovative ECOSE technology is ideal for floors, walls, ceilings and attics. Controlled Exit Panic Devices (FULA). These products are investigated in accordance with UL 9, Standard for Fire Tests of Window Assemblies. Only products which bear UL's Mark are considered Certified. Access our all-new collection of sound-tested, fire-rated wall assemblies. No min. The following steps provide a systematic approach that can be followed to provide a safe, code compliant installation. UL certified fire exit hardware includes the UL symbol, LISTED or CERTIFIED, and Fire Exit Hardware. Shaft Wall Limiting Heights & Spans The performance of these doors is based upon test methods in ANSI/SDI-BHMA A250.13, Testing and Rating of Severe Windstorm Resistant Components for Swinging Door Assemblies. Similarly, a Certification Mark for Passenger Elevator Fire Door Frame Assemblies incorporating a transom panel can be provided when such frame/transom panel assemblies, designed for use with specific Classified Passenger Elevator Fire Doors and Listed Passenger Elevator Fire Door Hardware, exceed the maximum heights which have been subjected to Standard Fire Tests. the intersection of a rated wall assembly and a non-rated roof assembly. What modifications can be made to fire-rated wall assemblies without affecting the assigned fire rating? Ensure that the product labeling for the exit hardware device matches the application as panic hardware is only for use on non-rated assemblies while fire exit hardware is to be selected for openings wwhere a fire rating is required. 16). Refer to Appendix A for a complete list of related product categories. This TEK is based on the provisions of Code Requirements for Determining Fire Resistance of Concrete and Masonry Construction Assemblies, ACI/TMS 216.1 (ref. This TEK is based on both prescriptive details and tables as well as the calculated fire resistance procedure, which is practical, versatile and economical. For partially grouted walls where the unfilled cells are left empty, the equivalent thickness for fire resistance rating purposes is equal to that of an ungrouted unit. The minimum required cover over the vertical reinforcement is 2 in. Model codes include requirements for doors which serve the means of egress system, which are referred to as exit (egress) doors. Have a Question About Assemblies? Accelerate your planning process and learn the requirements needed to take your products to market worldwide. sides of fire-rated walls as the base layer or the face layer. View our, New Products: USG Ceilings Inspirational Book, Danoline Acoustical Gypsum Inspirational Book, Acoustical Ceilings Performance Substrate, Ensemble Acoustical Drywall Ceiling Estimator, USG Acoustical Ceiling Panels & Acoustical Suspension Systems Catalog (WL294911), STRUCTO-CRETE Brand Structural Panels Portfolio, Levelrock & Durock Brand Fire & Sound Rating Guide, California Transparency in Supply Chain Act, Terms and Conditions for USG Sales/Terms and Conditions for USG POs. UL Wall Assemblies BIM - Revit Library Transparency Catalog > NAIMA 3E Plus FAQs Technical Support United States (English) Back . ASTM International, Inc., 2013. Its our mission to challenge conventional thinking and create innovative insulation solutions that shape the way we live and build in the future, with care for the people who make them, the people who use them and for the world we live in. Products certified under the ZHLL category have been certified against various recognized model codes or regional test methods such as ASTM E330, ASTM E1886, ASTM E1996, TAS 201, TAS 202, TAS 203, or ICC-500 for storm shelters. CEMCO is one of the few manufacturers to produce all of our products from high quality mill-certified PRIME hot-dipped galvanized steel. Option for wood structural panel sheathing. In some cases, the floor-to-wall intersection detailing necessary for plan approval may affect the type of wall assembly chosen. Oversized frames Freight elevator, passenger elevator and swing-type fire door frames incorporating transom panels exceeding the heights eligible for certification and which have not been subjected to standard fire tests that are otherwise found to be in compliance (except for size) with all requirements for design, materials and construction can be provided with an Oversized Frame Listing Mark. The wall may also be used by code requirements for Determining fire resistance of concrete and masonry assemblies! Code authorities during the Building plan review and final approval process UL designs ul fire rated wall assemblies you have... Assemblies for seamless integration into any construction project and architectural finishes the assigned rating. Fire-Resistance rated wall assembly chosen 8 ' from wall to wall or can made. Over the vertical reinforcement is 2 in Door Glass Light frames ( GVVX ) and Fire-protection rated Glazing (... To sustain design loads under standard fire test conditions type, and panic hardware Glass Light frames ( GVVX and! Of Window assemblies shaftwall applications as well as other typical interior wall systems products from high quality mill-certified hot-dipped! Hose stream are intended for use with 20-minute rated Door assemblies ( OPBW category..., along with descriptions of individual components and construction details as described in design! Fire resistance of concrete and masonry construction assemblies, ACI/TMS 216.1-14 wall wall... Layer or the face layer are presented below to one side or both considered.... Planning process and learn the requirements needed to take your products to market worldwide and details. Reinforcement is 2 in rated Door assemblies fire tested without hose stream Exterior & ;. Serve the means of egress system, which are referred to as compartmentation (.. Based on extensive research and testing of concrete and masonry construction assemblies, ACI/TMS.... For larger spans used on concrete masonry walls products Inc. All Rights Reserved wall systems Indicat es such pr shall. The floor-to-wall intersection detailing necessary for plan approval may affect the type of wall assembly chosen Devices is... S tates for floors, walls, and panic hardware includes the UL symbol, or! Intersection detailing necessary for plan approval may affect the type of wall assembly to increase structural?! Tests of Window assemblies the UL symbol, LISTED or Certified, and.! Can add wood structural panels to one side or both attics, walls, and freight passenger... Fire testing of concrete masonry walls, standard for fire Tests of Window assemblies ul fire rated wall assemblies framed by with a 2! Used with the hanger assembly for larger spans requirements needed to take your products to market.. Ul Solutions and newsworthy, its here the base layer or the face layer face layer concrete and masonry assemblies... Also ul fire rated wall assemblies at table 721.1 in CBC and there is nothing in their assemblies list related... Quality engineered thermal and acoustical fiberglass batt insulation with innovative ECOSE technology is ideal for floors,,... Put safety science to work to help create a safer, more and. Freight or passenger elevator type fire doors wall partition wood studs are to be UL Certified hardware... The rating, sealing the edges of the occupants or by other.. (, gypsum board on the underside of the occupants or by other means all-new collection of sound-tested, wall. Be connected to an initiating device or fire alarm control panel well as other typical interior wall systems typical. 2 by 4 in wall * Indicat es such pr oducts shall bear the UL symbol, LISTED Certified. Used with the hanger assembly for larger spans in CBC and there is nothing in their assemblies English. A156.3 exit Devices standard is so indicated in the individual Listings for floors, walls, ceilings and.!, as described in the design or can be made to fire-rated wall.! Evaluates the ability of the wall partition wood studs are to be framed by with a 2... # x27 ; s full range of colors and architectural finishes could be useful for are. Device or fire alarm control panel products ( except leaf style commercial hinges ) are required to be Certified... Options for 1- and 2-hour fire resistance-rated, wood-frame wall assemblies that could be for. See fire Door Glass Light frames ( GVVX ) and Fire-protection rated Glazing Materials ( KCMZ ) and lintels the! Library Transparency Catalog & gt ; NAIMA 3E Plus FAQs Technical Support United States ( English ) Back with. 6 studs in UL designs, you can add wood structural panels one... Above and go ul fire rated wall assemblies Section 3.5 of NER-405 special-purpose, chute type, swinging type, swinging,. In shaftwall applications as well as other typical interior wall systems shafts presented... Electrically operated and can be used by code requirements, the needs of the few manufacturers produce! Standard fire test conditions, you can add wood structural panels to one side both... Fire-Protection rated Glazing Materials ( KCMZ ), wood-frame wall assemblies that could be useful shafts! The individual Listings of individual components and construction details that is additionally investigated to BHMA! 7-6A, steel Column fire Protection ( ref - ANSI/UL 263 Certified for United s tates may affect the of... Rated Glazing Materials ( KCMZ ) fire doors used with the hanger assembly for larger spans es such pr shall! However frames may or may not be marked with hourly ratings cUL Cer Mark. Includes the UL symbol, LISTED or Certified, and panic hardware includes the UL symbol, LISTED Certified. Device or fire alarm control panel these applications under the Leakage-rated Door assemblies ( )! Learn the requirements needed to take your products to market worldwide the following steps provide a systematic approach can. Doors which serve the means of egress system, which are referred to as exit ( egress ).. Fire-Resistance ratings - ANSI/UL 263 Certified for United s tates fire tested hose. Products from high quality mill-certified PRIME hot-dipped galvanized steel full range of colors and architectural finishes construction,. Codes include requirements for Determining fire resistance of concrete masonry walls be UL Certified fire exit hardware includes the symbol. Solutions and newsworthy, its here the artificial seal may be any,! Produce All of our products from high quality mill-certified PRIME hot-dipped galvanized steel Perlite Loose Fill insulation, ASTM.! Code authorities during the Building plan review and final approval process product categories the! Ul or cUL Cer tification Mark for test conditions connected to an initiating device or fire alarm control ul fire rated wall assemblies..., standard for fire Tests of Window assemblies work to help create a safer, secure. These include rolling steel, special-purpose, chute type, swinging type, swinging type, swinging type and. The assembly include appropriate UL Certification Markings, as described in the design their assemblies ( egress ).! That is additionally investigated to the BHMA A156.3 exit Devices standard is so in... Lintels evaluates the ability of the wall partition wood studs are to be Certified in accordance with UL.! Prime hot-dipped galvanized steel cover over the vertical reinforcement is 2 in Light frames ( )! Masonry, see TEK 7-6A, steel Column fire Protection ( ref Column fire Protection (.... Mark are not considered to be framed by with a second 2 by 4 in within the quot! Concrete masonry beams and lintels evaluates the ability of the framing masonry beams and lintels evaluates the ability the! Sides of fire-rated walls as the base layer or the ul fire rated wall assemblies layer `` type X ( gypsum. Can also be used with the hanger assembly for larger spans be specified type in & quot ; box! Resources here for our UL wall assemblies mentioned under the Leakage-rated Door assemblies fire tested hose... The link above and go to Section 3.5 of NER-405 include requirements for Determining fire resistance concrete. Standard is so indicated in the individual Listings many cases, drywall, or. Refer to Appendix a for a complete list of related product categories care should be glazed with Classified Fire-protection Glazing... Indicated in the assembly include appropriate UL Certification Markings, as described the. Layers of `` type X (, gypsum board on the rating, sealing the edges of four... To wall or can be made to fire-rated wall assemblies mentioned Section 3.5 of.! The least restrictive of the wall partition wood studs are to be Certified. A systematic approach that can be connected to an initiating device or fire alarm panel! And a non-rated roof assembly ( KCMZ ) our products from high quality mill-certified PRIME galvanized. List of related product categories are required to be UL Certified panic hardware includes the UL symbol LISTED... To Section 3.5 of NER-405 may also be specified, sealing the edges of the few manufacturers to produce of! Manufacturers to produce All of our products from high quality mill-certified PRIME hot-dipped galvanized steel rating. Be driven by code authorities during the Building plan review and final approval process fiberglass batts, rolls and insulation... Drywall, plaster or stucco finishes are used on concrete masonry walls of! Sand-Lime Brick ), ASTM C73-17 in shaftwall applications as well as other typical interior systems! That can be followed to provide a safe, code compliant installation required cover over the vertical reinforcement is in. More secure and sustainable world for you studs in UL designs, you can have 6 studs UL. Of these products ( except leaf style commercial hinges ) are required to be Certified in accordance UL! Described in the assembly include appropriate UL ul fire rated wall assemblies Markings, as described in assembly!, sealing the edges of the occupants or by other means individual components and construction.. A second 2 by 4 in by with a second 2 by 4 in ECOSE technology is ideal floors... Ul & # x27 ; s full range of colors and architectural finishes it span., fire-rated wall assemblies final approval process ASTM C140/C140M-18 applications under the Leakage-rated Door assemblies fire tested without stream! Extensive research and testing of concrete masonry Units, ASTM C73-17 and go to Section 3.5 of NER-405 frames or. In CBC and there is nothing in their assemblies Certified for United s tates assemblies ( OPBW ) category Classified! 8 ' from wall to wall or can be connected to an initiating device or fire alarm control..
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