WAC 296-45-48540
Chlorine systems. (1) Chlorine system
enclosures shall be posted with signs restricting entry and
warning of the hazard to health and the hazards of fire and
explosion.
Note:
See chapter 296-62 WAC for requirements necessary to protect the health of employees from the effects of chlorine.
(2) Only designated employees may enter the restricted area.
Additionally, the number of personnel shall be limited to those
necessary to accomplish the task safely.
(3) Emergency repair kits shall be available near the
shelter or enclosure to allow for the prompt repair of leaks in
chlorine lines, equipment, or containers.
(4) Before repair procedures are started, chlorine tanks,
pipes, and equipment shall be purged with dry air and isolated
from other sources of chlorine.
(5) The employer shall ensure that chlorine is not mixed
with materials that would react with the chlorine in a
dangerously exothermic or other hazardous manner.