This standard BS 4110:1999 Specification for visors for vehicle users is classified in these ICS categories:
13.340.20 Head protective equipment
This standard specifies the design and performance requirements for visors for vehicle users and describes appropriate test methods.
It covers visors for attachment to helmets conforming to BS 6658:1995 or replacement visors for attachment to helmets conforming to either BS 2495 or BS 5361 which are now withdrawn.
It does not cover goggles for use by motorcycle or moped riders, which are covered by BS EN 1938.