This standard applies to the quality classification of wire-wound and conductive plastic precision potentiometers. This standard only gives key technical indicators and is not a complete standard. It must be used together with SJ 2891, SJ 2892 and related detailed specifications.
SJ/T 9548.2-1993 history
1993SJ/T 9548.2-1993 Quality grading standard for high-precision potentiometers