GB/T 4994-2015
ActiveIron/Copper-Nickel(Constantan) thermocouple wires
铁—铜镍（康铜）热电偶丝
Application Summary AI generated
This standard specifies the technical requirements, test methods, and inspection rules for iron/copper-nickel (constantan) thermocouple wires, which are used to manufacture Type J thermocouples. It is applied in industrial temperature measurement contexts, such as in metallurgy, chemical processing, and power generation, where accurate and stable temperature sensing is required. The standard ensures the wires meet specified electromotive force tolerances and material consistency for reliable performance in high-temperature environments.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.