YY/T 1090-2018 Translated English of Chinese Standard. (YYT 1090-2018, YY/T1090-2018, YYT1090-2018): Ultrasonic Physiotherapy Equipmenthttps://www.chinesestandard.net, 11 may 2019 - 8 páginas This Standard specifies the requirements, test methods and inspection rules of ultrasonic physiotherapy equipment. This Standard is applicable to ultrasonic physiotherapy equipment, which generates continuous wave or quasi-continuous wave ultrasonic energy through planar circular ultrasonic transducer within the frequency range of 0.5 MHz ~ 5 MHz. This Standard is not applicable to equipment whose effective sound intensity is more than 3 W/cm2, or equipment which adopts focused ultrasound. |