IEC 61338-4:2005-03（en-fr）适用于波导型介质谐振器，作为定制产品或标准目录项目，其质量根据能力批准进行评估。它规定了IEC 61338-1中包含的适当测试和测量方法的首选额定值和特性，并给出了波导型介质谐振器详细规范中使用的一般性能要求。

IEC 61338-4:2005-03(en-fr) applies to waveguide type dielectric resonators as custom built products or as standard catalogue items whose quality is assessed on the basis of capability approval. It prescribes the preferred ratings and characteristics with the appropriate tests and measuring methods contained in IEC 61338-1, and gives the general performance requirements to be used in detail specifications for waveguide type dielectric resonators.