GB/T 3 2710.5 - 2016 "Safety Specifications for Environmental Test Instruments and Equipment, Part 5: High Temperature Thermostatic Bath" specifies the safety requirements for high temperature Thermostatic bath during use. The standard covers the safety content of electric shock, electric burns, mechanical hazards, flame spread, excessive temperature, fluid pressure, radiation effects (including laser, sound pressure and ultrasonic pressure), gas release, explosion, implosion and biological and chemical hazards, but does not cover the function, performance, Encasement effectiveness, electromagnetic compatibility, explosion protection measures and protection of maintenance personnel of the equipment. The scope of application includes high temperature Thermostatic bath in laboratory and industrial processes. This standard applies when the equipment is an immersion thermostatic circulation device and does not have external circulation function. In addition, relevant standards for industrial automation products should also be complied with. Normative references include GB 4208-2008 "Protection level of enclosure (IP code) " and GB 4706 series standards.