NFPA 285 Exterior Wall Assemblies Fire Propagation Testing Apparatus
Scope:
This standard provides a test method for determining the fire propagation characteristics of exterior non-load-bearing wall assemblies and panels used as components of curain wall assemblies, constructed using combustilble materials or that incomorte combusibie components, that ae imended to be installed on buildings required to have exterior walls of noncombustible construction.
The fire propagation characteristics are determined for post-flashover fires of interior origin.
Standard:
NFPA 285 .
Test Apparatus:
1. The test apparatus shall consist of a two-story structure having a height of 15 ft 8 in. # 1 in. (4.8 m + 25 mm) with a test room on each story.
2. Each testroom shal have uninished inside dimensions of 10 f + 0.5 in. widex 10 ft + 0.5 in.deep(3.05 mt 13 mmx 3.05 mt 13 mm) wih an unfinishedfloor-to-ceiling height of 7 ft± 0.5 in.(2.13 m ±13 mm).
3. The test apparatus shall be constructed in accordance with Figure 4.2.3.
Burners:
1 The burner arrangement shall consist of two gas-fired burners
2 One bumer shall be placed inside the first-story test room, and the other bumer shallbe placed inside the first-slory window opening ofthe wall asembly
3 The test room bumer shall be constructed of nominal 2 in. (1 mm outside diameter steel ipe with nominal % in.(3 mm) diameter holes spaced a nominal lin.(25 mm) on center.
4 The burner holes shall be located along the top surface of the pipe.
5 The first hole shallbe located 3.5 f (1.06 m) from the rear wall on both sides of the gas suply pipes and continue across the front gas supply pipe
6 The gas supply pipe located within the test room shallbe wraped with a single layer of nominal 1 in.(25 mm) thick nominal 8 lb/t3 (128 kg'm') densityceramic fiber blanket.
7 The burner shall be positioned with its centerline 2.5 ft ± 1 in. (0.8 m ± 25 mm) above the floor.
8 Figure 4.4.8 shall be used to determine the design of the first-story test room burner.
1. Provide professional testing equipment design and manufacturing service
2. For all your inquires about us or our products, we will reply you in detail within 24 hours.
3. We have sales who help you custom-made the sales solution.Customize various non-standard testing equipment per your standard.
4. We have engineers who has ten years working experience to help you solve all the problems of technical.
5. Widely used in various field: scientific institutions,colleges,inspection institutions,auto parts,electronics,plastic and rubber and so on.
6. Provide testing equipment assembly service
7. Provide testing equipment package service
8. Provide remonte online and door-to-door service.
9. Make products per your standard and we’re willing to serve you parts with competitive price, good quality ,timely delivery and professional service.
10.If you are interested in any of our series, please don’t hesitate to contact us for more details.
11.We warmly welcome customers from all over the world and are looking forward to establishing a steady and long-term business relationship with you.
FAQ:
Q:Are you factory or trading company?
A:We are factory in Dongguan City, Guangdong Province,China.Near Shenzhen or Guangzhou.
Q:What kind of certificate you have?
A:ISO9001 Certification, CE Certification.
Q:What is the lead time of the product?
A: Generally 7-15 days after getting the deposit.
Q:How about the payment term?
A: T/T, by cash, western union, or L/C.
Q:How about the warranty term?
A:1 year warranty,The engineer can teach the machine on the spot.
Por favor verifique seu email!
