The standard specifies two test methods to determine the steamloss of automatic steam traps to ISO 6552. The object of these tests is to determine the amount of live steam, if any, that is lost through the steam trap.
DS/EN 27841:1994 history
1994DS/EN 27841:1994 Automatic steam traps - Determination of steam loss - Test methods
1993DS/EN 27841:1993 Automatic steam traps. Determination of steam loss. Test methods