2024 NFPA 11 Standard for Low-, Medium, and High-Expansion Foam

NFPA 11, Standard for Low-, Medium-, and High-Expansion Foam 2024 edition establishes mandatory requirements for the design, installation, operation, testing, and maintenance of expansion foam and compressed air foam systems. Coverage spans fixed, semi-fixed, and portable foam systems for both interior and exterior hazard protection across industrial, petrochemical, aircraft hangar, warehouse, and other high-challenge fire risk applications. The standard addresses system design criteria, foam concentrate selection, discharge devices, water supplies, acceptance testing, and inspection, testing, and maintenance protocols for low-, medium-, and high-expansion foam systems.

Who Uses NFPA 11

Required by fire protection engineers, system designers and contractors, AHJ officials, facility managers, and ITM service providers responsible for foam fire protection systems in industrial, petrochemical, aviation, and storage occupancies.

What's New in the 2024 Edition

The 2024 edition includes significant annex revisions, ITM restructuring, and terminology updates, including:

• Major revisions to Annex E covering foam health, safety, and environmental considerations.
• Revisions to Annex H directing users to specific organizations offering the most current available information on foam-related topics.
• Removal of ITM requirements from Chapter 14.
• Several terminology updates throughout the standard.

Stay compliant with the foam fire protection system requirements in effect for your application and jurisdiction.

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