STM PDF

Instruments for the measurement of aural acoustic impedance admittance. Original standard IEC 61027-1991 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60645-5-2004

A method for calculating reduction factors for groups of cables in free air, protected from solar radiation. Original standard IEC 61042-1991 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 60287-2-2-1995

D.C. or a.c. supplied electronic step-down convertors for filament lamps - General and safety requirements. Original standard IEC 61046-1993 in PDF full version. Additional info + preview on request

Document status: Replaced by

Amendment 1 - D.C. or a.c. supplied electronic step-down convertors for filament lamps - General and safety requirements. Original standard IEC 61046-1993 amd1-1995 in PDF full version. Additional info + preview on request

Document status: Replaced by

Varistors for use in electronic equipment - Part 2- Blank detail specification for silicon carbide surge suppression varistors. Assessment level E. Original standard IEC 61051-2-1-1991 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type VHS - FM audio recording. Original standard IEC 61054-1991 in PDF full version. Additional info + preview on request

Document status: Withdrawn