This standard only applies to the quality classification of carbon film, glass glaze, wirewound and organic solid core preset potentiometers. This standard only gives key technical indicators and is not a complete standard. It must be used together with SJ 2787, SJ 2788 and related detailed specifications.
SJ/T 9548.1-1993 history
1993SJ/T 9548.1-1993 Quality grading standard for preset potentiometers