DZ/T 0101.12-1994
Active
JJF 1926-2021
Active
National Metrology Technical Specifications JJF
JJF 1926-2021 Calibration Specification for Thermocouples at Palladium Melting Point by Wire-Bridge Method
JJF 1926-2021 Calibration Specification for Thermocouples at Palladium Melting Point by Wire-Bridge Method
Basic Information
Standard Code:
JJF 1926-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2021-10-18
Implement Date:
2022-04-18
Pages:
20 pages
Scope
This specification applies to the calibration of high-temperature thermocouples such as precious metals and tungsten-rhenium (hereinafter referred to as thermocouples) using the fuse method at the melting point of palladium (1,554.8℃). The diameter of the thermocouple electrodes should be (0.3～1.0)mm, and the length should be no less than 750mm. The calibration using the melting points of other pure metals (such as platinum and gold) can refer to this specification.
Development Information
Referenced Standards
GB/T 16839.1-2018 Thermocouples—Part 1:EMF specifications and tolerances
GB/T 18036-2008 The test method of thermo-emf for platinum
GB/T 29822-2013 Tungsten-rhenium thermocouple wires and temperature-electromotive force(EMF) tables
国际温度咨询委员会编.1990年国际温标近似技术[M].凌善康 陈小林 译.北京:中国计量出版社 1993.
JJF 1176-2007(0~1 500)℃
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