Specifies criteria for selection and installation of wheeled and portable fire extinguishers. Should be used in conjunction with ISO 11602-2. Fire extinguishers are intended as a first line of defence against limited size fires. Even if the property has automatic sprinklers, standpipe and hose or other fixed protection equipment, they are still required. Does not apply to permanently installed systems for fire extinguishment, although portions of such systems may be portable, i.e; hoses and nozzles attached to a fixed supply of extinguishing media. The use of higher rated, larger or greater numbers of extinguishers will generally improve protection. Does not cover extinguishers for use on board aircraft or watercraft.