This and other helpful hints will ensure that the extinguisher works efficiently when you need it. Mechanisms of extinguishment unique to dry chemical extinguishers is also presented. When a fire is larger than can be handled by a portable fire extinguisher or when protection of buildings and equipment by cooling is indicated, a charge hose line is required. Knowing about hose lines and nozzle will help you ensure that they will be ready when needed. The required labeling and placarding of hazardous materials is mandated at the federal level by the Department of Transportation.
Many states have their own marking requirements.
By indicating the class of the material, DOT warns emergency personnel and other individuals of hazards of the product. When and how material should be marked is discussed. Basics of Fire Behavior Learning how fire behaves under normal conditions is critical to estimating its course in the situation that you face. The knowledge of the typical ignition will help you prevent the fire that could easily destroy your workplace. The first casualty of a non-explosive fire is the atmosphere which surrounds the fire area.