Fibre optic interconnecting devices and passive components - Basic test - and measurement procedures - Part 3-19: Examinations and measurements - Polarization dependence of return loss of a single-mode fibre optic component IEC 61300-3-19 /  
 IEC 61300-3-19 
ISO, IEC. 
 - First edition. 
 - Geneva :   ISO :   IEC,   1997. 
 - 19 stron ;   30 cm.