It’s crucial to stay current with industry-consensus recommendations for the use of Class A foams in firefighting. NFPA 1145, Guide for the Use of Class A Foams in Firefighting, outlines complete operational considerations for foam selection and application, operator information, system maintenance, and post-incident documentation.

Fire chiefs and firefighters need this guide for specific knowledge about:

• Foam properties and characteristics of foam solutions and finished foam
• Proportioning foam generation, discharge, and check valves
• Operational safety, including general guidance and working conditions

2027 Updates include:

• Comprehensive Properties and Characteristics Information: The guide offers the complete criteria for properties and characteristics of foam concentrate, foam solutions, and finished foam.
• Clarifications on Hybrid Foams: The 2027 edition was updated to include a clarification that the guide applies to hybrid foams with multiple class ratings, as long as they meet the performance requirements in NFPA 1150, Standard on Foam Chemicals for Fires in Class A Fuels, for Class A foams.
• Hardware Guidance: Coverage of proportioning, foam generation and discharge, and check valve hardware considerations.
• Operational Considerations: Guidance on the selection of foam characteristics and application techniques, as well as operator information, routine and post-incident system maintenance, and documentation.
• Helpful Supplementary Material: Referenced publications, definitions, and annex material provide additional guidance to the user.