Confined Space

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Across
  1. 6. Person who monitors entrants but never enters for rescue.
  2. 7. Hazard involving being surrounded or buried by material.
  3. 10. Required before being assigned confined space duties.
  4. 11. Gas measured first because the LEL sensor will not read correctly without it.
  5. 13. Oxygen percentage below which the atmosphere is considered unsafe.
  6. 14. Hazardous gas commonly measured in oil and gas operations.
  7. 17. System used to lock and secure energy sources.
  8. 18. Program that addresses excavations, trenches, and bell holes.
Down
  1. 1. Qualified person who authorizes and supervises entry.
  2. 2. Document completed before confined space work begins.
  3. 3. Process of removing hazardous energy before entry.
  4. 4. Device used to test O₂, H₂S, LEL, and CO levels.
  5. 5. Condition where oxygen exceeds 23.5 percent.
  6. 8. Process used to move fresh air into a confined space.
  7. 9. Equipment commonly used with a retrieval system during rescue.
  8. 12. Preferred method of rescue from a confined space.
  9. 15. Any body part crossing the plane of an opening is considered this.
  10. 16. Maximum acceptable LEL percentage before entry is prohibited.