STM PDF

Photometric and colorimetric methods of measurement of the light emitted by a cathode-ray tube screen. CEI/IEC 60441:1974. Original standard IEC 60441-1974 in PDF full version. Additional info + preview on request

Document status: Active

Amendment 1 - Electric toasters for household and similar purposes - Methods for measuring the performance. Original standard IEC 60442-2003 in PDF full version. Additional info + preview on request

Document status: Active

Stabilized supply apparatus for measurement. Original standard IEC 60443-1974 in PDF full version. Additional info + preview on request

Document status: Withdrawn

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. CEI/IEC 444-1:1986. Original standard IEC 60444-1-1986 in PDF full version. Additional info + preview on request

Document status: Active

Amendment 1 - 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 IEC 60444-1-1986 amd1-1999 in PDF full version. Additional info + preview on request

Document status: Active

Measurement of quartz crystal unit parameters - Part 11- Standard method for the determination of the load resonance frequency fL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction. IEC 60444-11:2010. Original standard IEC 60444-11-2010 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60444-11-2026