California Code of Regulations › Title 19 - Public Safety › Division 1 - State Fire Marshal › Chapter 3 - Fire Extinguishers › Article 5 - Selection and Distribution of Portable Fire Extinguishers › Section 566 - Application for Specific Hazards

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
				  Class B Fire Extinguishers for Pressurized Flammable Liquids and Pressurized
				  Gas Fires. Fires of this nature are considered to be a special hazard. Class B
				  fire extinguishers containing agents other than dry chemical are relatively
				  ineffective on this type of hazard due to stream and agent characteristics.
				  Selection of extinguishers for this type of hazard shall be made on the basis
				  of recommendations by manufacturers of this specialized equipment. The system
				  used to rate extinguishers on Class B fires (flammable liquids in depth) is not
				  applicable to these types of hazards.
It has been determined that special nozzle design and rates
					 of agent application are required to cope with such hazards. Caution: It is
					 undesirable to attempt to extinguish this type of fire unless there is
					 reasonable assurance that the source of fuel can be promptly shut
					 off.
(b) Fire extinguishers
				  provided for the protection of cooking appliances that use combustible cooking
				  media (vegetable or animal oils and fats) shall be listed and labeled for Class
				  K fires.
(c) Three-dimensional
				  Class B Fires. A three-dimensional Class B fire involves Class B materials in
				  motion such as pouring, running or dripping flammable liquids and generally
				  includes vertical as well as one or more horizontal surfaces. Fires of this
				  nature are considered to be a special hazard. Selection of extinguishers for
				  this type of hazard shall be made on the basis of recommendations by
				  manufacturers of this specialized equipment. The system used to rate
				  extinguishers on Class B fires (flammable liquids in depth) is not directly
				  applicable to this type of hazard.
(d) Water Soluble Flammable Liquid Fires
				  (Polar Solvents). Extinguishers used for the protection of water soluble
				  flammable liquids, such as alcohols, acetones, esters, ketones, etc., shall be
				  selected in accordance with Section
				  565.2. AFFF type and FFFP type
				  fire extinguishers shall not be used for the protection of water soluble
				  flammable liquids, such as alcohols, acetone, esters, ketones, etc., unless
				  specifically referenced on the extinguisher nameplate.
(e) Electronic Equipment Fires. Extinguishers
				  for the protection of delicate electronic equipment shall be selected from the
				  following: carbon dioxide type or a halogenated agent type, or a distilled
				  water mist type with a minimum Class A: C Rating.
(f) In patient care areas and sleeping rooms
				  of health care facilities, fire extinguishers, including the agents and
				  expelling means, should be selected and utilized which would not be detrimental
				  to patients and are appropriate for the type of fire expected, such as
				  distilled water mist type fire extinguishers with a minimum "2-A: C"
				  Rating.
1. New
					 section filed 3-4-92; operative 4-3-92 (Register 92, No. 15).
2.
					 Amendment filed 12-27-2001; operative 1-1-2002 pursuant to Government Code
					 section
					 11343.4
					 (Register 2001, No. 52).
3. Amendment repealing EXCEPTION to
					 subsection (b) filed 2-28-2007; operative 3-30-2007 (Register 2007, No.
					 9).
Note: Authority cited: Section
						13160,
						Health and Safety Code. Reference: Section
						13160,
						Health and Safety Code.