Practice question

What hazard is indicated by Hazard Identification Number '33' displayed on the top line of an orange plate?

  1. Flammable gas
  2. Spontaneously combustible solid
  3. Highly flammable liquid (flash-point below 23°C)
  4. Flammable liquid with secondary toxic risk

Answer: C — Highly flammable liquid (flash-point below 23°C)

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