NSF ANSI 24 pdf free download

NSF ANSI 24 pdf free download.Plumbing System Components for Recreational Vehicles.
2.4 burst protection: Prevention of physical damage to the potable water system by antifreeze at specified protection temperature and concentration of active ingredient.
2.5 corrosion-resistant materials: Materials that maintain their original surface characteristics under prolonged contact with the environment and chemical compounds.
2.6 drainage system: Piping that conveys body or liquid wastes to the drain outlet, excluding the sewer connector.
2.7 fixture: A receptor for water or waterborne wastes that discharges into a sanitary drainage system or waste holding tank.
2.7.1 fixture drain: The drain from a fixture’s trap or the drain outlet, or to the junction of that drain with any other drain pipe.
2.8 flood level: The level in the receptacle over which water would overlfow to the outside of the receptacle.
2.9 flush water holding tank: A tank designed to be manually filled with water that is not intended to be plumbed into a potable water distribution system.
2.10 liquid waste: The discharqe 1 rom any fixture, appliance, area, or appurtenance that does not include discharges froni water closets and urinals.
2.11 multiple fixture pump: A pump to deliver water to two or more fixtures. Pumps may be manually or automatically activated.
2.12 non-fouling: Free from obstruction.
2.13 recreational vehicle A vehicu[ar unit primiriIy designed as temporary living quarter for recreational, camping, travel, or seasonal use that either has its own motive power, or s mounted on or towed by another vehicle. The basic entities are travel trailer, camping trailer, truck camper, motor home, and fifth wheel trailer.
2.14 removable: Capable of being taken away from the main unit without using only simple tools (screwdriver, pliers open-end wrench, etc.).
2.14.1 readily removable: Capable of being taken away from the main unit without using tools.
2.15 self-contained, recirculating, chemically controlled toilets: Toilets with a pump to force flushing liquid (with required chemical) from the self-contained tank through a mechanical, self-cleaning filter into the peripheral rim of the bowl, to flush deposited contaminants back into the tank.
2.16 single fixture pump: A pump to deliver water to a single fixture other than a toilet. Pumps may be manually or automatically activated.
2.17 smooth: Free of pits, pinholes, cracks, crevices, inclusions, rough edges and other surface imperfections detectable by visual and tactile inspection.
2.18 trap: A fitting or device designated and constructed to provide a liquid seal that will prevent the backflow of air without materially affecting the flow of liquid waste through it.
5.1.2 Connector couplings, caps, and hoses shall be watertight after attachment to prevent leakage.
5.1.3 Drain hoses shall have a nominal 3 in diameter. Body waste drain hoses shall be designed to support attachment of connector couplings, without deformation of the inside diameter of the hose when installed according to the manufacturer’s instructions.
5.1.4 Body waste drain hoses shall be capable of being formed to not less than 900 (1.6 rad) with a 3 in radius. When formed, drain hoses shall be capable of passing a minimum 2h in (69.9 mm) diameter ball.
5.2 Performance
System components to be tested shall be mounted to a nominal 3 in diameter standpipe with the drain opening plugged. A pressure of 3 psig (20.7 kPa) shall be applied for 5 mm, with no leakage of water from the system.
5.3 Marking and identification
Connector couplings. caps. and drain hoses shall be clearly and permanently marked with trade name or
designation.
6 Side-vented drainage system
6.1 Scope
This section covers side-vented drainaçje systems installed in a recreationa’ vehicle Systems shall not reduce the flow belc’w thai which may pass through a basket sfrainer for a nominil 2 ri sink opening. The same area used for liquid waste shaD be used for air ond venting purposes.NSF ANSI 24 pdf download.