ICC-ES AC432
Full Name
ICC-ES AC432 – Acceptance Criteria for Fixed Condensed Aerosol Fire-extinguishing Systems
Scope
ICC-ES AC432 establishes the acceptance criteria for fixed condensed aerosol fire-extinguishing systems. These systems are used in normally unoccupied spaces as a total flooding fire suppression system for:
- Class A fires: surface fires involving ordinary combustible materials like wood, paper, and cloth.
- Class B fires: flammable liquid fires involving gasoline, oil, and paint.
- Class C fires: electrical fires involving energized equipment.
Key aspects covered by AC432 include:
- Performance requirements: the system must meet specific fire suppression performance criteria, including extinguishing time and agent concentration.
- Design and construction: the system’s design and construction must ensure proper functionality and reliability, covering aspects like nozzle placement, agent distribution, and system activation.
- Safety considerations: the criteria address safety aspects like toxicity of the extinguishing agent, discharge pressure, and potential for unintended activation.
- Installation and maintenance: guidelines for proper installation, inspection, testing, and maintenance procedures to ensure the system’s effectiveness over time.
Resources
Keywords
acceptance criteria; fixed condensed aerosol; fire-extinguishing systems; fire suppression; class A fires; class B fires; class C fires; extinguishing time; agent concentration; nozzle placement; agent distribution; system activation; toxicity; discharge pressure; installation; inspection; testing; maintenance