Technical requirements for industrial thermocouples

1. Thermocouple Part 1: Graduation Table
Standard Code: GB/T16839.1-1997
Standard Content: Provides a graduation table for converting the thermocouple potential into its corresponding measured temperature and the measured temperature into the corresponding thermocouple potential.

2. Thermocouple Part 2: Tolerance
Standard Code: GB/T16839.2-1997
Standard Content: Provides the manufacturing tolerance of precious metal and cheap metal thermocouples made by the electromotive force-temperature relationship in Part 1 of the standard. The tolerance value is applicable to the thermocouples made of wire with a diameter of 0.25mm-3mm delivered to users.

3. Technical Requirements for Industrial Thermocouples
Standard Code: JB/T9238-1999
Standard Content: Specifies the technical requirements, test methods, test rules, packaging and marking of industrial thermocouples. Applicable to industrial thermocouples with graduation scale and tolerance conforming to GB/T16839.1~2.

4. Technical requirements for explosion-proof of industrial thermocouples and thermal resistors

Standard code: JB/T5518-1991
Standard proposal unit: National Technical Committee for Standardization of Industrial Process Measurement and Control
Standard drafting unit: Shanghai Temperature Instrument Factory
Standard content: It stipulates the technical requirements, test methods, test rules, packaging and marking of explosion-proof of industrial thermocouples and thermal resistors. Applicable to industrial thermocouples and thermal resistors used in factory explosive gas mixtures with ambient temperature of -20~+60℃, humidity not more than 90%, and atmospheric pressure of 86~106kPa.
Technical requirements and graduation scale of industrial platinum thermal resistors
Standard code: JB/T8622-1997
Standard content: Non-equivalent adoption of IEC751 "Industrial Platinum Thermal Resistor". The product classification, technical requirements, test methods and test rules, as well as the graduation table of industrial platinum thermal resistors are specified. It is applicable to industrial platinum thermal resistors with a measurement range of -200℃~+850℃ in the entire temperature range.

5. Thermocouple with converter*
Standard code: JB/T10202-2000
Standard content: It specifies the definition, product classification, technical requirements, test methods, test rules, marking, packaging and storage of thermocouple with converter. It is applicable to detachable or non-detachable armored thermocouple with converter, as well as thermocouple with converter with additional field display function.
*Due to the different standard names, the actual thermocouple with converter is the integrated thermocouple with temperature transmitter.