ASTM E145-94 (2011) The standard for gravity convection and forced ventilated ovens specifies performance requirements for gravity convection and forced ventilated ovens, including Temperature uniformity, time constants, and ventilated rates, among others. The standard applies to equipment with a test chamber volume not exceeding 0.6 cubic meters. The gravity convection oven design Temperature range is 20 ° C to 200 ° C, and the forced ventilated oven is 20 ° C to 500 ° C. The standard defines four oven types in detail and provides Temperature uniformity test methods for general oven testing in laboratory and industrial environments.