Quartz crystal units - A specification in the IEC Quality Assessment System for Electronic Components (IECQ) - Part 2: Sectional specification - Capability approval
石英晶体单元 - 电子元件Iec质量评估系统(iecq)中的规范 - 第2部分:部分规范 - 能力认证
Applies to quartz crystal units manufactured as custom-built
products or as standard catalogue items and whose quality is
assessed on the basis of capability approval. Prescribes the
preferred ratings and characteristics, with the appropriate tests
and measuring methods contained in the generic specification IEC
1178-1 and gives general performance requirements to be used in
detail specifications for quartz crystal units.