The choice of type and required quantity of fire extinguishers depends on the following factors: capacity of fire extinguisher, total area, class of fire, inflammable or material at the objects: class A fires of solid substances - (wood, textile and paper). Requirements for fitting-out of the premises with hand fire extinguishers Type of space Ultimate protected area, sq.m Fire rating Foam and water fire extinguishers, capacity 10 l Dry powder fire extinguishers, capacity, l Carbon dioxide fire extinguishers, capacity, l 2 5 10 2 5(8) À, Á, Â (inflammable gases and liquids) 200 À 2++ - 2+ 1++ - - Á 4++ - 2+ 1++ - - Ñ - - 2+ 1++ - - Ä - - 2+ 1++ - - (E) - - 2+ 1++ - 2++ Á - À 2++ - 2++ 1+ - 2++ Ä - - 2+ 1++ - - (Å) - - 2++ 1+ 4+ 2++ Ã 800 Â 2+ - ++ 1+ - - Ñ - - 2++ 1+ - - Á,Ã 1800 À 2++ - 2++ 1+ - - Ä - - 2+ 1++ - - (Å) - - 2++ 1+ 4+ 2++ Public buildings 800 À 4++ - 4++ 2+ - 4+ (Å) - - 4++ 2+ 4+ 2++ Notes: Dry powder fire extinguishers have several types of charges that depends on a class of fire at the object: class A – dry powder ÀÂÑ (Å); for classes Â, Ñ and (Å) - ÂÑ (Å) or ÀÂÑ (Å) and for Class D - D. 2. Fire extinguishers marked with a sign "++" are highly recommended for using at the object. Fire extinguishers marked with a sign "+" can be used for fitting out the object if there are no recommended fire extinguishers or if there are some serious reasons for their usage. Fire extinguishers marked with a sign "-"cannot be used for fitting out of the object One can use dry powder extinguishers instead or together with portable fire extinguishers in the enclosed space with volume less 50 cubic meters,. Requirements for fitting-out of the premises with portable fire extinguishers Type of building Ultimate protected area, sq.m Fire rating Foam and water fire extinguishers, capacity 10 l Dry powder fire extinguishers, capacity, l Carbon dioxide fire extinguishers, capacity, l 20 80 À, Á, Â (inflammable gases and liquids) 500 À 1++ 1++ - 3+ Á 2+ 1++ - 3+ Ñ - 1++ - 3+ Ä - 1++> - - (Å) - 1+ 2+ 1++ À, Á, Â (inflammable gases and liquids) 800 À 1++ 1++ 4+ 2+ Á 2+ 1++ - 3+ Ñ - 1++ - 3+ Ä - 1+ - - (Å) - 1+ 1++ 1+ Notes: 1. Dry powder fire extinguishers have several types of charges that depends on a class of fire at the object: class A – dry powder ÀÂÑ (Å); for classes Â, Ñ and (Å) - ÂÑ (Å) or ÀÂÑ (Å) and for Class D - D. 2. Fire extinguishers marked with a sign "++" are highly recommended for using at the object. Fire extinguishers marked with a sign "+" can be used for fitting out the object if there are no recommended fire extinguishers or if there are some serious reasons for their usage. Fire extinguishers marked with a sign "-"cannot be used for fitting out of the object. Class B – fires of inflammable gases and consumable solid substances, class C – fires of gases.;