All that glitters… may not be an effective cargo cover in all situations. How the properties of cargo covers affect their performance in the real world
Dr. Steve Brabbs, Dr. Srinivas S Cherukupalli, Lawrence M Knorr, Alain Weimerskirch
DuPont Protection Solutions
In order to specify the most appropriate passive protection for temperature sensitive pharmaceuticals, it is important to understand:
- The threats that will be experienced over the full shipping route
- The fundamental basis of those threats and how they can be addressed
- The response of the available protection options to these threats
To better understand these topics, the authors have carried out comparative studies of various kinds of passive covers and have demonstrated that different covers can give very different results depending on the type of environmental exposure occurring during a cold-chain break. Shiny, metallic covers which perform well in thermal chamber testing were shown to provide relatively less protection when exposed outside during the day, when the effect of sunlight can dominate. This is important commercially because most cold-chain breaks occur at handover points between different stages of the transport route, and these typically are where the goods are handled outdoors rather than in a warehouse, reefer truck or aircraft. Covers also behave very differently after an excursion when the load is brought back into a temperature controlled environment, slowing recovery of the load to CRT conditions to different extents.
It is critical to understand the difference between reflectivity, emissivity and thermal resistance if you want to predict how different passive protection options will behave in real threat exposure environments.
For more insights to guide your decisions as a pharmaceutical logistics provider, download the full report on this study at: