Hydrogen effects in optical fibre cables. Guidelines Ingestion-build-52208 BS 9220 N001 describes the

BS 9220 N001 describes the alternate sizes in the tables that have been chosen from two staggered series

It covers technological aspects relating to the secure delivery of services

These wires change their shape when a force from outside is applied and gets back to their previous form when the force is taken back

including guards and safety devices

This International Standard does not address the methods used to demonstrate compliance of biological or chemical indicators to ISO 11138 and ISO 11140

Hydrogen effects in optical fibre cables. Guidelines Ingestion-build-52208 BS 9220 N001 describes the1 Scope The purpose of this technical report is to provide information concerning the behaviour of fibres and cables when exposed to hydrogen effects. The application of multimode fibres is very rarely subject to hydrogen effects. For that reason, this technical report only highlights the effects of hydrogen to single mode fibres.