Because gasoline fires are the most common type of boat fire, marine-rated class b fire extinguishers are the class required on most boats. the number after the b, for example a b1 or b2 extinguisher, indicates the capacity of the extinguisher.. Fire extinguisher requirements for boats. most powerboats operate using gasoline, which would explode if it came into contact with a flame. fire emergencies will always be a risk for boaters, but fires can be fought with the right equipment.. although some boat types are not required to carry a fire extinguisher, you should always have one on board your boat.. The size and type of your boat is the determining factor for the quantity, type, and storage of your fire extinguishers. coast guard requirements, which are only a minimum, call for relatively few extinguishers — vessels under 26 feet in length need to carry only one portable, while vessels between 27 and 40 feet in length only require two..
Fire extinguishers are classified by letters and numbers according to the class and size fire they can put out. the letter, (a, b, c, or d) indicates the class of fire. the number is a measure of the capacity of the extinguisher - the larger the number, the greater the capacity of extinguishing material to put out a fire.. Fire extinguishers. all vessels are required to have a type b fire extinguisher on board if one or more of the following conditions exist: inboard engine. Of these variables it is the required volume of liquid for the test which is used to indicate the extinguisher's power i.e. 21b indicates that 21 litres of liquid are required. fire extinguisher ratings. the letter indicating the type of fire and number indicating the fire fighting capability are combined to create the fire extinguisher rating..
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