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eTools Home : Shipyard Employment Scope | Glossary | Additional Resources | Viewing / Printing Instructions | Credits General Requirements Shipbuilding Ship Repair Shipbreaking Barge Cleaning   Confined or Enclosed Spaces » Opening Covers   Take precautions when opening the covers to tanks and within other confined or enclosed spaces in the event the space is under pressure or hazardous materials have leaked from internal piping systems. Typically you should leave at least two nuts on opposite sides of the cover in place until the cover can be cracked and any internal pressure released.   eTools Home : Shipyard Employment Scope | Glossary | Additional Resources | Viewing / Printing Instructions | Credits

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