NSF ANSI 24-2016 pdf download.Plumbing System Components for Recreational Vehicles
1.1 Scope
This Standard covers pipe, fittings, valves, traps, vents, tanks, pumps, connectors, fixtures, appliances, and similar appurtenances used in a plumbing system of a recreational vehicle.
1.2 Measurement
Decimal and SI conversions provided parenthetically shall be considered equivalent. Metric conversions have been made according to IEEE/ASTM SI 10. 1.
3 Normative references and tools
The following reference documents contain requirements that constitute requirements of this NSF/ANSI Standard. At the time of publication, the indicated editions were valid. All documents are subject to revision, and it is the responsibility of the user of this specification to determine the applicability of the most recent editions of these documents. The most recent published edition of the document shall be used for undated references.
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 discharge from any fixture, appliance, area, or appurtenance that does not include discharges from 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 vehicular unit primarily designed as temporary living quarter for recreational,camping, travel, or seasonal use that either has its own motive power, or is 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.
3 Materials
3.1 General
Materials shall withstand exposure to the use environment, pressure requirements, corrosive actions of chemicals and water, handling and installation.
3.2 Dissimilar materials
Dissimilar materials may be used, but shall be protected against electrolytic action.
3.3 Welding
Welded seams and deposited weld materials shall meet the applicable corrosion resistance requirements.
3.4 Potable water contact surfaces
Surfaces of components intended for potable water contact shall comply with the requirements specified in NSF/ANSI 61.
3.5 Non-corrosion-resistant materials
Non-corrosion-resistant materials shall have all wetted surfaces covered with a protective coating Cathodic protection may also be used to prevent or reduce corrosion.NSF ANSI 24-2016 pdf download
