National Metrological Technical Specifications of the People's Republic of China
Latest
JJF 1444-2014
Scope
This specification is applicable to the calibration of DC comparison temperature measurement bridges (hereinafter referred to as bridges) with accuracy levels of 0.000 level 1, 0.000 level 2, 0.000 level 5, and 0.001 level.
JJF 1444-2014 history
2014JJF 1444-2014 Calibration Specification for D. C. Comparator Bridges for Measuring Temperatures