NFPA 1145-2022 PDF

Full title and description

NFPA 1145-2022 — Guide for the Use of Class A Foams in Fire Fighting. This Guide provides information and recommendations for the safe and effective selection, proportioning, application, and operational use of Class A foam concentrates and foam solutions for manual structural and wildland-related firefighting and protection operations.

Abstract

NFPA 1145 offers guidance for agencies planning to use Class A foam for fire fighting and protection. It addresses foam concentrate and solution properties, proportioning and discharge hardware, foam generation and application techniques, operational safety, system maintenance, and post‑incident documentation. The Guide references requirements in related NFPA documents (notably NFPA 1150) and is intended to inform safe, practical field use rather than prescribe mandatory requirements.

General information

• Status: Active / Current (2022 edition).
• Publication date: 2022 (2022 edition).
• Publisher: National Fire Protection Association (NFPA).
• ICS / categories: Protection against fire; firefighting and fire protection (ICS 13.220 and related fire‑protection categories).
• Edition / version: 2022 edition (revises the 2017 edition).
• Number of pages: Approximately 21 pages (typical format for the Guide).

Scope

This Guide presents information for agencies planning to use Class A foam for firefighting and protection. It covers foam concentrate and foam solution properties, proportioning and discharge hardware, foam generation and discharge devices, selection of application techniques, operator information, operational safety, system maintenance, and documentation. It describes use and application of Class A foams that meet the acceptance and test requirements of NFPA 1150 and does not apply to Class A foam use in sprinkler systems or to fires primarily involving Class B flammable/combustible liquids. See Annex B (informational references) for tactical and supplementary publications.

Key topics and requirements

• Foam concentrate and foam solution properties (wetting, stability, compatibility, environmental considerations).
• Proportioning methods and hardware (pump proportioners, eductors, balanced‑pressure systems, compressed air foam systems).
• Foam generation and discharge devices (aspirating/non‑aspirating nozzles, CAFS, aerial delivery considerations).
• Application techniques for structural and wildland interface situations (mix ratios, application rates, tactics to improve water performance).
• Operational safety, environmental and health considerations, training and PPE guidance for operators.
• Inspection, maintenance, testing, and post‑incident recording of foam systems and equipment.
• Cross‑references to NFPA 1150 (foam chemical performance/acceptance) and other related NFPA standards.

Typical use and users

Primary users are fire departments, wildland and wildland‑urban interface (WUI) agencies, incident commanders, procurement officers, training officers, and authorities having jurisdiction (AHJs) developing operational guidance and purchasing specifications. The Guide is used for training, operational planning, equipment selection, and safe deployment of Class A foam in both structural and wildland suppression tasks.

Related standards

Notable related documents include NFPA 1150 (Standard on Foam Chemicals for Fires in Class A Fuels — performance and acceptance/testing of Class A foam chemicals), NFPA 18 (Standard on Wetting Agents), and wildland/WUI standards such as NFPA 1144 (standard addressing structure ignition hazards and WUI considerations). Users should consult these referenced standards and the Annex B informational references for a complete technical and regulatory context.

Keywords

Class A foam, foam concentrate, foam solution, proportioning, wetting agent, compressed air foam system (CAFS), foam generation, firefighting tactics, wildland‑urban interface (WUI), NFPA 1150, operational safety.

FAQ

Q: What is this standard?

A: NFPA 1145-2022 is a guidance document (Guide) from NFPA that provides recommendations for the selection, proportioning, application, and safe field use of Class A foam concentrates and foam solutions in firefighting.

Q: What does it cover?

A: It covers foam properties and characteristics, proportioning and discharge hardware, foam generation and application methods, operational safety and training, inspection and maintenance, and documentation — with cross‑references to NFPA 1150 for foam chemical acceptance. It does not govern sprinkler system use of Class A foam or primary use on Class B liquid fires.

Q: Who typically uses it?

A: Fire chiefs, incident commanders, wildland fire agencies, fire‑service trainers, procurement/specification personnel, and AHJs use it to develop operational procedures, training, and acquisition specifications for Class A foam and related equipment.

Q: Is it current or superseded?

A: The 2022 edition is the current Guide edition (it revises the 2017 edition). Users should confirm with NFPA or their AHJ for adoption or jurisdictional acceptance and check for any amendments or errata.

Q: Is it part of a series?

A: NFPA 1145 is a Guide that sits alongside related NFPA standards addressing foam chemicals and wetting agents (NFPA 1150, NFPA 18) and other fire/WUI standards; it is commonly used in combination with those documents rather than as a standalone regulatory code.

Q: What are the key keywords?

A: Class A foam, foam concentrate, foam solution, proportioning, CAFS, wetting agents, foam generation, operational safety, NFPA 1150.