The JJF 1184-2007 standard specifies a method for testing the temperature field of horizontal tubular Thermocouple verification furnaces (both models with and without thermostats) in the range of 300~ 1500 ° C. The specification defines the measurement concepts of axial and radial temperature fields and specifies the use of fixed and mobile standard Thermocouples to evaluate furnace temperature distribution. The standard applies to temperature field testing of Thermocouple verification furnaces and recommends reference execution when testing vertical tubular verification furnaces and annealing furnaces. Verification furnace as a heat source equipment Thermocouple verification, including a variety of structural forms and uses of furnace type, the standard describes the furnace, heating elements, insulation layer and other major components of the function and measurement requirements.