Environmental Engineering Reference
In-Depth Information
10. Provide positive ventilation to the chlorine storage area and chlori-
nator room.
11.
always
keep chlorine cylinders at ambient temperature.
never
apply
direct flame to a chlorine cylinder.
12. Use the oldest chlorine cylinder in stock first.
13. Always keep valve protection hoods in place until the chlorine cyl-
inders are ready for connection.
14. Except to repair a leak, do not tamper with the fusible plugs on
chlorine cylinders.
15. Wear self-contained breathing apparatus (SCBA) whenever chang-
ing a chlorine cylinder, and have at least one other person with a
standby SCBA unit outside the immediate area.
16. Inspect all threads and surfaces of chlorine cylinder and have at
least one other person with a standby SCBA unit outside the imme-
diate area.
17. Use new lead gaskets each time a chlorine cylinder connection is
made.
18. Use only the specified wrench to operate chlorine cylinder valves.
19. Open chlorine cylinder valves slowly, no more than one full turn.
20. Do not hammer, bang, or force chlorine cylinder valves under any
circumstances.
21. Check for chlorine leaks as soon as the chlorine cylinder con-
nection is made by gently expelling ammonia mist from a plastic
squeeze bottle filled with approximately 2 ounces of liquid ammo-
nia solution. Do not put liquid ammonia on valves or equipment.
22. Correct all minor chlorine leaks at the chlorine cylinder connec-
tion immediately.
23. Except for automatic systems, draw chlorine from only one mani-
folded chlorine cylinder at a time.
never
simultaneously open two
or more chlorine cylinders that are connected to a common mani-
fold pulling liquid chlorine; however, it is acceptable to have two or
more cylinders connected to a common manifold pulling gaseous
chlorine.
24. Contact trained plant personnel to repair chlorine leaks.
25. Provide positive ventilation to a contaminated chlorine atmosphere
before entering whenever possible.
26. Have at least two people present before entering a chlorine atmo-
sphere: one person to enter the chlorine atmosphere, the other to
observe in the event of an emergency.
never
enter a chlorine atmo-
sphere unattended. Remember: The Occupational Safety and Health
Administration (OSHA) mandates that only fully qualified Level III
HAZMAT responders are authorized to aggressively attack a haz-
ardous materials leak such as chlorine.
