Development of thermal testing profiles using data collected from various lanes is a common practice in the pharmaceutical industry. These thermal profiles are used in chamber testing of shipping containers. Currently the available standards emphasize the use of a standard test profile. This presentation argues that we now need to begin to identify standard algorithms for developing test profiles as well. This will allow shippers to develop test profiles form their own sourced data. In particular, this presentation describes the QT(min/max) method for developing thermal profiles and demonstrates how it is superior to several existing methods that are currently in use.