This standard applies to the quality classification of metallized paper DC fixed capacitors. This standard only gives key technical indicators and is not a complete standard. It must be used together with GB 4874, IEC (PQC 24) and related detailed specifications.
SJ/T 9503.4-1991 history
1991SJ/T 9503.4-1991 Fixed metallized paper dielectric d.c. capacitors--Quality grading standard