Fire Extinguisher Selection Guide
Fires are classified in four groups A, B, C, and D
- Class A fires – are fires involving organic solids like paper, wood, etc
- Class B fires – are fires involving flammable Liquids.
- Class C fires – are fires involving flammable Gasses
- Class D fires - are fires involving Metals
BS5306 part B makes reference to maximum areas covered by fire extinguisher ratings, for example 13A covers 200sq.m., 27A covers 415 sq.m. and 34A covers 523 sq.m.