Methods of operation first you must inspect the fire Extinguisher for any missing parts damage, or last date it was inspected. Pull pin and squeeze, point at the base of the fire using a sweeping motion for most common type of A, B, C check pressure gage and dry chemical annually. What is wrong with this picture?
It is important to read and understand the lettering on a fire extinguisher and what they are used for, this can save you a lot of money in fire damages.1, A Fire Extinguishers with the letter A is used for paper, wood, and trash wood or paper.2, B Fire Extinguishers with the letter B is used for flammable liquids, gasoline, oil, paints, grease.3, C Fire extinguishers with the letter C is used for electrical fires. There are four classifications of fire extinguishers WATER TYPE, FOAM, CARBON DIOXIDE, DRY Chemical Dry chemical is broken down into two categories Sodium or Potassium Bicarbonate, and Multipurpose A, B, C most of us have these in the workplace.