NF C93-903-20*NF EN 61300-3-20:2004 Fibres optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20 : examinations and measurements - Directivity of fibre optic branching devices.
2004NF C93-903-20*NF EN 61300-3-20:2004 Fibres optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20 : examinations and measurements - Directivity of fibre optic branching devices.