SAE J 2234
This document has been declared Stabilized and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.The scope of this SAE Information Report is to: a. define the equivalent temperature; b. describe how it can be used to evaluate the performance of a heating and/or air-conditioning system in a vehicle; and c. describes how it can be measured.