BS EN 61300-2-23. Fibre optic interconnecting devices and passive components. Basic test and measurement procedures. Part 2-23. Tests. Sealing for non-pressurized closures of fibre optic devices
英国标准EN 61300-2-23 光纤互连设备和无源元件 基本测试和测量程序 第2-23部分 测验 光纤设备非加压密封件的密封