Codes and standards published by NFPA are displayed as read-only under license from NFPA solely for use within this system. NFPA material may not be downloaded, printed, reproduced, or transferred.

Updated with major technical changes, NFPA 18A helps fire departments use water additives to prevent or reduce the spread of fire.

The 2017 edition of NFPA 18A: Standard on Water Additives for Fire Control and Vapor Mitigation provides guidance for industry professionals responsible for purchasing, testing, listing, and using water additives for the purpose of fire control and flammable vapor mitigation.

When added to water in proper quantities, water additives are agents that suppress, cool, mitigate fire and/or vapors and/or provide insulating properties for fuels exposed to radiant heat or direct flame impingement.

Extensively revised, this edition of NFPA 18A includes:

• Major technical changes, including a new chapter addressing Class C fire test methods to provide the fire service with safe limits for fire attack on energized electrical equipment
• Editorial changes, such as an updated structure for consistency with other NFPA codes and standards
• Updated references throughout

Improve effectiveness and safety at the fire scene with NFPA 18A.