This standard applies to J1 type (soldered) crystal boxes for quartz resonators. In addition to complying with the provisions of this standard, the crystal box should also comply with the provisions of GB8553 "General Specification for Crystal Boxes".
SJ 2816.1-1987 history
1987SJ 2816.1-1987 Detail specification for (soldered) crystal holders (enclosures) for Type J1