This document specifies the test requirements for automatic steam trap used for condensate removal/recovery services for optimized utilization of energy, in refinery, power generation or other general applications where steam is used as a medium of heat transfer. The tests can be classified as production tests and performance characteristic tests and may be conducted to ensure the correct functioning of a steam trap or to evaluate the performance of a particular design. This International Standard specifies the tests to be performed relative to each one of these two categories and briefly describes the corresponding test methods.