California Code of Regulations
Title 19 - Public Safety
Division 1 - State Fire Marshal
Chapter 3 - Fire Extinguishers
Article 4 - Classification and Ratings of Portable Fire Extinguishers
Section 561.1 - Classification and Rating System

Universal Citation: 19 CA Code of Regs 561.1

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

(a) The classification and rating system described in these regulations is that of ANSI/UL Standard 711, and is based on extinguishing preplanned fires of the determined size and description as follows:

(1) CLASS A RATING. Wood and excelsior.

(2) CLASS B RATING. Two-in. (5.1-cm) depth n-heptane fires in square pans.

(3) CLASS C RATING. No fire test. Agent must be a nonconductor of electricity.

(4) CLASS D RATING. Special tests on specific combustible metal fires.

(5) CLASS K RATING. Special tests on cooking appliances using combustible cooking media (vegetable or animal oils and fats).

1. New section filed 3-4-92; operative 4-3-92 (Register 92, No. 15).
2. New subsection (a)(5) filed 12-27-2001; operative 1-1-2002 pursuant to Government Code section 11343.4 (Register 2001, No. 52).

Note: Authority: Section 13160, Health and Safety Code. Reference: Section 13160, Health and Safety Code.

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