LAB Safety Signs

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Across
  1. 6. Presence of combustible materials
  2. 7. Presence of explosive and/or self-reactive substances
  3. 9. Low-temperature zone
  4. 11. Maintain dark, photo-sensitive materials.
  5. 12. Presence of corrosive substances
Down
  1. 1. Bell to be pressed during an emergency like fire or accident.
  2. 2. Presence of laser radiation
  3. 3. Presence of carcinogenic materials
  4. 4. Must wear a breathing mask/respirator; the presence of contaminated air
  5. 5. Presence of Biohazardous materials
  6. 8. Presence of harmful chemicals causing irritations
  7. 10. Presence of toxic materials