Tanks of liquid chlorine shall be stored in an adequately ventilated unoccupied room, where their possible leakage cannot affect workers.
For emergency and rescue work, independent self-contained oxygen-type masks or supplied air equipment shall be provided.
At least two exits, remote from each other, shall be provided for all rooms in which chlorine is stored.
Spur tracks upon which tank cars containing chlorine and caustic are spotted and connected to pipelines shall be protected by means of a derail in front of the cars.
All chlorine, caustic, and acid lines shall be marked for positive identification, in accordance with American National Standard A13.1—1967.
Gas masks capable of absorbing chlorine shall be supplied, conveniently placed, and regularly inspected, and workers who may be exposed to chlorine gas shall be instructed in their use.