Establish standard temperature calibration apparatus species

Temperature measurement apparatus and working with the temperature calibration, the general standard is a standard method of comparing the thermometer was seized by the thermometer, which completed comparative law. Due to the large temperature range specified temperature scale, interpolation different temperature zones of different instruments, but the actual temperature measuring instruments for its application gas pump filters indicator range is different, so the different temperature measuring instruments and their measurement type is different. Various industries and regions tank level gauge system traceable to standard equipment in various industries and regions, the temperature calibration used in the construction industry can be traced back to the local metering station and then traced to China China Institute of Metrology on the basis of temperature, it can be traced to China Building Science School building energy and environment Test Center, and then finally traceable to China, Chinese Academy of Sciences baseline automatic fuel dispenser measurement. Temperature and length, mass, time, current, luminous intensity, amount of substance (mole) and known seven basic physical fuel transfer hand pump quantities. Thermodynamic temperature calibration (symbol T) is the physical fundamentals hand, it is expressed in Kelvin (Kelvin symbol K), defined as the thermodynamic temperature of the triple point of water is 1/273.16. As the previous definition of the temperature scale used and 273.15K (freezing) to represent the temperature difference, so it retains all methods. By definition, equal to the size of degrees Kelvin, the temperature difference can also use Celsius or Kelvin to represent.