Effective use of a fire extinguisher

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Across
  1. 3. put out fires in ordinary combustibles.
  2. 4. pin at the top to break the seal.
  3. 5. must be assessed before combating a fire.
  4. 6. are for use on flammable liquids.
  5. 9. direct the flow of the extinguishing agent.
  6. 10. Approach the fire standing at a safe distance
  7. 11. this is used to secure the lever.
Down
  1. 1. handles together to discharge the extinguisher.
  2. 2. regulates the extinguishing agent flow.
  3. 3. suitable for use only on electrically fire
  4. 7. the nozzle from side to side.
  5. 8. contains the extinguishing agent.