Marine Notice 15/2011
AMSA has become aware that there is the possibility that refrigeration units fitted to shipping containers re-gassed in Vietnam between March 2011 and June 2011 may have been filled with contaminated refrigerant gas.
The risk of explosion has also been identified by Lloyds Register in their safety alert 31/2011, where it has been suggested that the contamination may have arisen due to topping up of systems with different types of gas. In normal operation this situation should not create a hazardous situation while the refrigerant gas remains sealed within the pipe work and compressor system of the refrigeration unit of the container.
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Source: AMSA