Nevada Administrative Code › Chapter 444 - Sanitation › PUBLIC BATHING PLACES › General Standards for Construction › Section 444.180 - Disinfectants: Use of chlorine gas

Current through June 11, 2024
An owner of a public bathing or swimming facility who
				  obtained his or her operating permit on or after January 16, 1996, may not use
				  compressed chlorine gas to sanitize or disinfect the facility. An owner of a
				  public bathing or swimming facility who obtained his or her operating permit
				  before January 16, 1996, may use compressed chlorine gas to sanitize the
				  facility if the following features are provided:
1. The cylinders of chlorine, the scale
				required by subsection 15 and the chlorinator must be kept above grade in a
				separate, well-ventilated, reasonably gastight and corrosion-resistant
				enclosure.
2. The enclosure must be
				provided with vents near the floor which terminate outdoors through an airtight
				duct at a point where chlorine gas will not sink into spaces below the surface
				of the ground. Mechanical ventilation must be used. The exhaust system must be
				capable of providing not less than two air changes per hour in the enclosure
				and comply with applicable building and fire codes.
3. The door to the enclosure must not open
				into the pool enclosure and must open outward. All enclosures must be equipped
				with a quick exit door push bar. The enclosure must be equipped with a key
				locked latch, with the key lock located on the outside of the enclosure. The
				enclosure must be locked at all times except when personnel are
				inside.
4. An observation window
				must be provided in the wall or door of the enclosure that provides a good view
				of the inside of the enclosure and is not less than 18 square inches (116.14
				square centimeters) in size. Artificial illumination of at least 20
				foot-candles must be provided to permit the observation and maintenance of the
				equipment in the enclosure.
5.
				Switches for the operation of the exhaust fan and the artificial illumination
				must be located on the outside of the enclosure and near the door.
6. The floor area of the enclosure must be of
				adequate size to house the chlorinator.
7. The chlorinator must be of rugged design,
				capable of withstanding wear without developing leaks.
8. Chlorine cylinders must be anchored to
				prevent their falling over. A valve stem wrench or valve handle must be
				maintained on the chlorine cylinder so the supply of gas can be shut off
				quickly in the case of an emergency. The valve protection hood must be kept in
				place except when the cylinder is in operation.
9. The chlorine feeding device must be vacuum
				operated and designed so that during accidents or interruptions of the water
				supply, or break in the system, the feeder positively and automatically shuts
				off the supply of chlorine gas and vents any leaking gas outside the enclosure
				at a safe point of discharge. The enclosure must be equipped with an acceptable
				and properly functioning device, with an audible alarm, to detect chlorine
				leakage. A leakage test kit consisting of ammonia water and a sponge swab must
				also be provided.
10. The
				chlorinator must be a solution feed type, capable of delivering chlorine at its
				maximum rate without releasing chlorine gas into the equipment room. Pressure
				vacuum relief vents must discharge to the outside atmosphere in a safe
				area.
11. The temperature of the
				chlorine metering equipment must not fall below 55°F (12.8 °C). A means
				to keep the temperature above that level must be provided and used.
12. The chlorinators must be designed to
				prevent the backflow of water into the chlorine solution container.
13. A gas mask designed for use in a chlorine
				atmosphere and of a type approved by the appropriate federal agency must be
				located outside of the enclosure in a closed, unlocked cabinet. A replacement
				canister for use with the mask and a record book for recording any use of the
				mask must also be kept in the cabinet.
14. A placard must be posted on the outside
				of the enclosure that describes the first-aid measures for treating victims of
				chlorine exposure and includes the telephone number of the supplier of chlorine
				gas.
15. A scale or other suitable
				device must be provided so that the amount of chlorine gas contained in the
				cylinder can be determined.
16. A
				sign or placard stating "CAUTION - CHLORINE GAS" must be placed on the door to
				the chlorinator room in a location where it is readily visible to any person
				approaching the door.
17. Chlorine
				or chlorination equipment must not be located in a building which houses
				sleeping guests.
18. Facilities
				that use gas chlorination must employ personnel trained to the satisfaction of
				the health authority in the safe handling of chlorine and in the operation and
				maintenance of chlorination equipment. These personnel must be available at all
				times that the facility is open to ensure the safety of employees and
				visitors.
19. Gas chlorine
				cylinders must not be stored in areas where they are exposed to direct sunlight
				or are readily accessible to unauthorized persons.
Bd. of Health, Public
				  Bathing Places Reg. Art. 29 §§ 29.2-29.2.17, eff. 5-21-74-NAC A
				  11-1-88; 1-16-96
NRS
					 439.200,
					 444.070