This part of IEC 61994 is a technical specification that gives the terms and definitions for piezoelectric and dielectric filters representing the present state of the art, which are intended for use in the standards and documents of IEC technical committee 49.
IEC TS 61994-2:2000 history
2011IEC TS 61994-2:2011 Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection - Glossary - Part 2: Piezoelectric and dielectric filters
2000IEC TS 61994-2:2000 Piezoelectric and dielectric devices for frequency control and selection - Glossary - Part 2: Piezoelectric and dielectric filters