DIN EN 61300-3-25:2014 光纤互连器件和无源元件. 基本试验和测量程序. 第3-25部分:检查和测量. 套管和装有光纤套管的同心度 (IEC 61300-3-25-2013); 德文版本EN 61300-3-25-2013
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-25: Examinations and measurements - Concentricity of the non-angled ferrules and non-angled ferrules with fibre installed (IEC 61300-3-25:2013); Ge