1. (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. (1) CLASS A RATING. Wood and excelsior.
   2. (2) CLASS B RATING. Two-in. (5.1-cm) depth n-heptane fires in square pans.
   3. (3) CLASS C RATING. No fire test. Agent must be a nonconductor of electricity.
   4. (4) CLASS D RATING. Special tests on specific combustible metal fires.
   5. (5) CLASS K RATING. Special tests on cooking appliances using combustible cooking media (vegetable or animal oils and fats).

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

History

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).