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Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 1- Basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a pi-network. Original standard UNE-EN 60444-1-1997 in PDF full version. Additional info + preview on request

Document status: Active

Measurement of quartz crystal unit parameters by zero phase technique in a pi-network. Part 2- Phase offset method for measurement of motional capacitance of quartz crystal units. Original standard UNE-EN 60444-2-1997 in PDF full version. Additional info + preview on request

Document status: Active

Measurement of quartz crystal unit parameters - Methods for the determination of equivalent electrical parameters using automatic network analyzer techniques and error correction. Original standard UNE-EN 60444-5-1997 in PDF full version. Additional info + preview on request

Document status: Active

Measurement of quartz crystal unit parameters - Measurement of drive level dependence (DLD). Original standard UNE-EN 60444-6-2013 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN IEC 60444-6-2021

Measurement of quartz crystal unit parameters - Measurement of activity and frequency dips of quartz crystal units. Original standard UNE-EN 60444-7-2004 in PDF full version. Additional info + preview on request

Document status: Active

Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors. Original standard UNE-EN 60445-2017 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN IEC 60445-2021