Quartz crystal units - A specification in the IEC Quality Assessment System for Electronic Components (IECQ) - Part 3: Sectional specification - Qualification approval
石英晶体单元 - IEC电子元件质量评估系统(IECQ)中的规范 - 第3部分:部分规范 - 资质认证
Applies to quartz crystal units the quality of which is assessed on
the basis of qualification approval. Prescribes the preferred
ratings and characteristics, with the appropriate tests and
measuring methods contained in the generic specification IEC 61178-1.
Gives general performance requirements to be used in detail
specifications for quartz crystal units.