Fibre optic interconnecting devices and passive components - - Basic test and measurement procedures - Part 3-14: Examinations and measurements Accuracy and repeatability of the attenuation settings of a variable attenuator IEC 1300-3-14 /  
 IEC 1300-3-14 
ISO, IEC. 
 - First edition. 
 - Geneva :   ISO :   IEC,   1995. 
 - 15 stron ;   30 cm.