IEC 62884-1:2017(E) specifies the measurement techniques for piezoelectric, dielectric and electrostatic oscillators, including Dielectric Resonator Oscillators (DROs) and oscillators using FBAR (hereinafter referred to as "Oscillator")
ICS
31.140 Piezoelectric devices / Пьезоэлектрические и диэлектрические приборы