9 Additional Precautions for Entry into a Space where the Atmosphere is Known or Suspected to be Unsafe
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.1050(27) – Revised Recommendations for Entering Enclosed Spaces Aboard Ships – (Adopted on 30 November 2011) - Annex – Revised Recommendations for Entering Enclosed Spaces Aboard Ships - 9 Additional Precautions for Entry into a Space where the Atmosphere is Known or Suspected to be Unsafe

9 Additional Precautions for Entry into a Space where the Atmosphere is Known or Suspected to be Unsafe

  9.1 Spaces that have not been tested should be considered unsafe for persons to enter. If the atmosphere in an enclosed space is suspected or known to be unsafe, the space should only be entered when no practical alternative exists. Entry should only be made for further testing, essential operation, safety of life or safety of a ship. The number of persons entering the space should be the minimum compatible with the work to be performed.

  9.2 Suitable breathing apparatus, e.g. of the air-line or self-contained type, should always be worn, and only personnel trained in its use should be allowed to enter the space. Air-purifying respirators should not be used as they do not provide a supply of clean air from a source independent of the atmosphere within the space.

  9.3 Persons entering enclosed spaces should be provided with calibrated and tested multi-gas detectors that monitor the levels of oxygen, carbon monoxide and other gases as appropriate.

  9.4 Rescue harnesses should be worn and, unless impractical, lifelines should be used.

  9.5 Appropriate protective clothing should be worn, particularly where there is any risk of toxic substances or chemicals coming into contact with the skin or eyes of those entering the space.

  9.6 The advice in paragraph 8.5 concerning emergency rescue operations is particularly relevant in this context.


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