scope:

This standard specifies the requirements for materials installed in underground locations with regard to:

a) Flammability (including the risk of explosion);

b) Smoke emission;

c) Toxic fume emission.

This standard shall apply to installations:

a) In stations covered by Section 12 of the Fire Precautions (Sub-Surface Railway Stations) Regulations 1989 and 1-086;

b) In passenger and engineering trains;

c) In running tunnels;

d) In other locations that are not effectively separated from locations covered by a) or c) above;

e) In all other locations where risks from flammability, smoke or toxic fumes are not controlled to a level as low as reasonably practicable by other means..

Guidance is available in G-085.

Locations will be considered to be 'effectively separated' if they are either:

a) completely divided from the relevant stations and/or running tunnels by construction complying with Table 5, and there is no personnel access via that construction or;

b) configured such that it can be demonstrated that the stations/tunnels are adequately protected by means of fire and smoke control, in accordance with the relevant British Standards. This will require the support of a Fire Strategy, prepared, assured and accepted to be in accordance with 1-080.

This issue of the standard supersedes 1-085 A2

Purpose

The purpose of this Standard is to define the requirements for the fire safety of materials, in terms of flammability, smoke emission and toxic fume emission, installed on the London Underground (LU) network:

The business objective of this standard is to ensure that the risk to which the public and employees are exposed is controlled to a level that is as low as reasonably practicable.