The standard is GB/T 10592-1989 "Technical conditions for low/high temperature test chamber". The standard specifies the technical requirements of low/high temperature test chamber, covering temperature range (low temperature ≤ -60 ℃, high temperature ≥ 100 ℃), uniformity, fluctuation and other performance indicators, as well as equipment structure (insulation layer, air duct), electrical control (temperature transducer, regulation system), safety protection (overtemperature, overload protection) and other technical conditions. It is suitable for the design, manufacture and inspection of test equipment simulating high and low temperature environment, providing technical basis for evaluating the stability and reliability of equipment in high and low temperature environment, and ensuring the accuracy of environmental testing.