What is the symbol for Class C fire?
What is the symbol for Class C fire? blue circle The geometric symbol indicating Class C is a blue circle. Class D fire extinguishers are commonly found in a chemical laboratory. They are for fires that involve combustible metals, such as magnesium, titanium, potassium and sodium. How can you tell a Class C fire? Class C fires are identified by the presence of a burning gas. The most common flammable gases involved in fires are propane, butane and methane, and they form the 'fuel' aspect of the fire triangle, which is required for the fire to start, spread and continue...