The term “Cold Chain” refers to a temperature-controlled supply chain. A cold chain is an uninterrupted series of storage and distribution structures and activities which maintain a given temperature range for the product.This controlled temperature can be very cold (cryogenic), frozen (typically -5 to -30˚C), “tissue” (2 to 8˚C), or some other value. The Cold Chain is used for extending and ensuring the shelf life of a wide variety of products ranging from fresh produce and flowersto DNA tissue samples.
During the performance testing for Cold Chain package systems, thermocouple probes and separate temperature dataloggers measure temperatures within the product to determine the response to the test condition which is designed to mimic the intended distribution environment.Test results can be used to defend the package configuration when audited by regulators. It should be emphasized that both the thermal performance of the Cold Chain package as well as its mechanical integrity is important and successful distribution. Therefore it is a importance not only to determine how long the package will maintain the required temperature, but also its ability to withstand the normal impacts, vibration, and other mechanical excitation common in product distribution. Westpak has extensive experience in and lots of equipment for a variety of different Cold Chain related testing services.