NF C93-903-42*NF EN 61300-3-42:2008 纤维光学互连器件和无源元件 基本试验和测量程序 第3-42部分:检查和测量 单模定心衬套和/或带弹性定心衬套转换器的衰减
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-42 : Examinations and measurements - Attenuation of single mode alignment sleeves and or adaptors with resilient alignment sleeves