GB/T 29822-2013

GB/T 29822-2013 specifies the technical requirements, test methods, and temperature-electromotive force (EMF) tables for tungsten-rhenium thermocouple wires, which are used for high-temperature measurement in industrial furnaces, aerospace, and metallurgical processes. It applies to the manufacturing and calibration of thermocouples operating in inert, vacuum, or reducing atmospheres at temperatures up to 2300°C, ensuring accurate temperature sensing in extreme environments. The standard is critical for quality control and interoperability in sectors requiring precise high-temperature monitoring, such as steelmaking, glass production, and scientific research.