National Metrological Technical Specifications of the People's Republic of China
Latest
JJF 1438-2013
Scope
This specification applies to the calibration of the blood flow measurement part of color Doppler ultrasonic diagnostic instruments with a nominal frequency not higher than 15 MHz.
JJF 1438-2013 history
2013JJF 1438-2013 Calibration Specification for Color Doppler Ultrasound Diagnostic Equipments.Blood Flow Measurement