6/1/2018: Marine Safety Alert – Ethylene vapors activate carbon monoxide alarm

The Office of Investigations and Analysis released Marine Safety Alert 07-18, “Ethylene vapors activate Carbon Monoxide alarm: Take action, retreat, and avoid harm,” regarding reports that Port State Control Officers received alarms on their portable 4 gas meters giving a reading of 60 to 100 parts per-million carbon monoxide during a recent examination of a liquefied gas carrier that had cargo tanks containing ethylene vapors.