IEC  968-1998  Amandement  1  1991-04
IEC  61-1  Part 1  Lamps caps
IEC  61-3  Part 3  Gauges
IEC  238   Edison screw lamp holders
IEC  360  Standard method of measurement of lamp cup temperature rise
IEC 695-2-1  Fire harzard testing,  Part 2: Test methods etc

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