This specification is applicable to the calibration of surface thermometers using thermocouples as temperature sensing elements in the temperature range from room temperature to 400°C. Calibration of other types of surface thermometers may refer to this specification.
JJF 1409-2013 Referenced Document
GB/T 13639 Digital indicators with analogue input for use in industrial-process measurement and control systems
JJG 617-1996 Verification Regulation of Digital Temperature Indicators and Controllers
JJF 1409-2013 history
2013JJF 1409-2013 Calibration Specification for the Surface Thermometers