One veteran conservative education reformer describes himself as âfurious and frustratedâ by the increasing dominance of social justice warriors in education reform and the marginalization of dissenting views. âIt's an existential threat,â he notes.
Class A or Ordinary Combustibles ... Class B or Flammable and Combustible Liquids ... Class K for fires that involves combustible or fats cooking oils in well ... â PowerPoint PPT presentation.
Usually a fire extinguisher that contains dry chemicals is rated for multiple kinds of fires. Extinguishers filled with water can be used only for Class A fires, while carbon dioxide extinguishers are used for Class B and Class C fires.