Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 1) (Second Revision) which is identical with IEC 60679-1 : 2017 ‘Piezoelectric, dielectric and electrostatic oscillators of assessed quality - Part 1: Generic specification’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendations of the Magnetic Components, Ferrite Materials, Piezoelectric and Frequency Control Devices Sectional Committee and approval of the Electronics and Information Technology Division Council.

IS 9018 (Part 1) was first published in 1978 and was based on IEC Doc: 49 (Sectt) 83 ‘Second draft - Quartz crystal controlled oscillators’ and IEC Doc: 40 (C.O) 107 ‘Draft - Quartz crystal controlled oscillators’. The first revision of this standard was published in 2002 and was identical with IEC 60679-1 : 1997. The second revision of the above mentioned standard has been taken to align it with the latest version of IEC 60679-1 : 2017.