Inspection

• Is sufficient number of portable gas detectors measuring at least HC, H2S, CO, O2 available and suitable to test the provided enclosed spaces' atmosphere before entry?
• Are sufficient personal gas monitoring equipment available for wearer in the space?
  
• Are the gas detectors and its equipment in good operational condition & calibrated?
  
• Are deck & engine officers able to demonstrate the use & calibration of equipment?
• Is the H2S ppm low level alarm set in 5 ppm as recommended by ISGOTT?
• Is a valid shore calibration certificate available?
  
• Are the calibration span gases bottles sufficient and within their expiry date? Is relevant inventory up-to-date? Are the composition analysis certificates & MSDS available on board.
• Are bump test and / or calibration records available?
  
• Are gas detectors' manuals available on board? Are the instructions in ship's working language?
• Is the length of the sampling hose sufficient in order to reach the enclosed spaces lowest height?
• In case of manual aspiration pump, is the quantity of gas tubes (i.e. Draeger tubes) sufficient and within their expiry date? The quantity shall meet the Company's minimum requirements (if applicable).
  
• Is an up-to-date gas tubes inventory available?