202.0 Definition of Terms.202.1 General.

The definitions of terms are arranged alphabetically according to the first word of the term.

ABS.203.0 Acrylonitrile-butadiene-styrene. – A – Accepted Engineering Practice. That which conforms to technical or scientific-based principles, tests, or standards that are accepted by the engineering profession. Accessible. Where applied to a fixture, connection, appliance, or equipment, “accessible” means having access thereto, but which first may require the removal of an access panel, door, or similar obstruction. Accessible, Readily. Having a direct access without the necessity of removing a panel, door, or similar obstruction. Air Break. A physical separation which may be a low inlet into the indirect waste receptor from the fixture, appliance, or device indirectly connected. Air Gap, Drainage. The unobstructed vertical distance through the free atmosphere between the lowest opening from a pipe, plumbing fixture, appliance, or appurtenance conveying waste to the flood-level rim of the receptor. Air Gap, Water Distribution. The unobstructed vertical distance through the free atmosphere between the lowest opening from a pipe or faucet conveying potable water to the flood-level rim of a tank, vat, or fixture. Alternate Water Source. Nonpotable source of water that includes but not limited to gray water, on-site treated nonpotable water, rainwater, and reclaimed (recycled) water. Alternate Water Source. Nonpotable source of water that includes but is not limited to gray water, on-site treated non- potable gray water, rainwater, and reclaimed (recycled) water. Anchors. See Supports. Appliance. A device that utilizes an energy source to produce light, heat, power, refrigeration, air conditioning, or compressed fuel gas. This definition also shall include a vented decorative appliance.

Appliance, Low-Heat. A fuel-burning appliance that produces a continuous flue gas temperature, at the point of entrance to the flue, of not more than 1000°F (538°C).

Appliance, Medium-Heat. A fuel-burning appliance that produces a continuous flue gas temperature, at the point of entrance to the flue, of more than 1000°F (538°C) and less than 2000°F (1093°C). Appliance Categorized Vent Diameter/Area. The minimum vent diameter/area permissible for Category I appliances to maintain a nonpositive vent static pressure when tested in accordance with nationally recognized standards.

.** A fuel-burning appliance that produces a continuous flue gas temperature, at the point of entrance to the flue, of more than 1000°F (538°C) and less than 2000°F (1093°C). Appliance Categorized Vent Diameter/Area. The minimum vent diameter/area permissible for Category I appliances to maintain a nonpositive vent static pressure when tested in accordance with nationally recognized standards.

[NFPA 54:3.3.6] Appliance Fuel Connector. An assembly of listed semirigid or flexible tubing and fittings to carry fuel between a fuel-piping outlet and a fuel-burning appliance. Approved. Acceptable to the Authority Having Jurisdiction. Exception: [HCD 1 & HCD 2] “Approved” means meeting the approval of the Enforcing Agency, except as otherwise provided by law, when used in connection with any system, material, type of construction, fixture or appliance as the result of investigations and tests conducted by the agency, or by reason of accepted principles or tests by national author- ities, or technical, health, or scientific organizations or agen- cies. Notes: 1. See Health and Safety Code Section 17920 for “Approved” as applied to residential construction and buildings or structures accessory thereto as referenced in Section 1.8.2. 2. See Health and Safety Code Section 17921.1 for “Approved” as applied to the use of the hotplates in res- idential construction as referenced in Section 1.8.2. 3. See Health and Safety Code 19966 for “Approved” as applied to Factory-Built Housing as referenced in Sec- tion 1.8.3.2.5. 4. See Health and Safety Code Section 18201 for “Approved” as applied to Mobilehome Parks as refer- enced in Section 1.8.2. 5. See Health and Safety Code Section 18862.1 for “Approved” as applied to Special Occupancy Parks as referenced in Section 1.8.2. Approved Testing Agency. An organization primarily established for purposes of testing to approved standards and approved by the Authority Having Jurisdiction.

[HCD 1 & HCD 2] “Approved Testing Agency” is any agency which is determined by the enforcing agency, except as otherwise provided by statute, to have adequate personnel and expertise to carry out the testing of systems, materials, and construction fixtures or appliances. Area Drain. A receptor designed to collect surface or storm water from an open area. Aspirator. A fitting or device supplied with water or other fluid under positive pressure that passes through an integral orifice or constriction, causing a vacuum.

2019 CALIFORNIA PLUMBING CODE 31

DEFINITIONS any other purpose or distributed to any other persons or parti es.

Authority Having Jurisdiction. The organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, installations, or procedures. The Authority Having Jurisdiction shall be a federal, state, local, or other regional department or an individual such as a plumbing official, mechanical official, labor department official, health department official, building official, or others having statutory authority. In the absence of statutory authority, the Authority Having Jurisdiction may be some other responsible party. This definition shall include the Authority Having Jurisdiction’s duly authorized representative.

[HCD 1 & HCD 2] “Authority Having Jurisdiction” shall mean “Enforcing Agency” as defined in Section 207.0 of this code.

204.0Backflow. The flow of water or other liquids, mixtures, or – B – substances into the distributing pipes of a potable supply of water from sources other than its intended source. See Backpressure Backflow and Backsiphonage. Backflow Connection. An arrangement whereby backflow can occur. Backflow Preventer. A backflow prevention device, an assembly, or another method to prevent backflow into the potable water system. Backpressure Backflow. Backflow due to an increased pressure above the supply pressure, which may be due to pumps, boilers, gravity, or other sources of pressure. Backsiphonage. The flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into a water supply pipe due to a pressure less than atmospheric in such pipe. See Backflow. Backwater Valve. A device installed in a drainage system to prevent reverse flow. Bathroom. A room equipped with a shower, bathtub, or combination bath/shower. Bathroom, Half. A room equipped with only a water closet and lavatory. Bathroom Group. Any combination of fixtures, not to exceed one water closet, two lavatories, either one bathtub or one combination bath/shower, and one shower, and may include a bidet and an emergency floor drain. Battery of Fixtures. A group of two or more similar, adjacent fixtures that discharge into a common horizontal waste or soil branch. Bedpan Steamer. A fixture that is used to sterilize bedpans by way of steam. Boiler Blowoff. An outlet on a boiler to permit emptying or discharge of sediment. Bonding Conductor or Jumper. A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected. [NFPA 70:100(I)] Bottle Filling Station. A plumbing fixture connected to the potable water distribution system and sanitary drainage sys

ay of steam. Boiler Blowoff. An outlet on a boiler to permit emptying or discharge of sediment. Bonding Conductor or Jumper. A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected. [NFPA 70:100(I)] Bottle Filling Station. A plumbing fixture connected to the potable water distribution system and sanitary drainage sys

tem that is designed and intended for filling personal use drinking water bottles or containers not less than 10 inches (254 mm) in height. Such fixtures can be separate from or integral to a drinking fountain and can incorporate a water filter and a cooling system for chilling the drinking water. Branch. A part of the piping system other than a main, riser, or stack. Branch, Fixture. See Fixture Branch. Branch, Horizontal. See Horizontal Branch. Branch Vent. A vent connecting one or more individual vents with a vent stack or stack vent. Building. A structure built, erected, and framed of component structural parts designed for the housing, shelter, enclosure, or support of persons, animals, or property of any kind. Exceptions: [HCD 1 & HCD 2] “BUILDING” shall not include the following: 1. Any mobilehome as defined in Health and Safety Code Section 18008. 2. Any manufactured home as defined in Health and Safety Code Section 18007. 3. Any commercial modular as defined in Health and Safety Code Section 18001.8 or any special purpose commer- cial modular as defined in Section 18012.5. 4. Any recreational vehicle as defined in Health and Safety Code Section 18010. 5. Any multifamily manufactured home as defined in Health and Safety Code Section 18008.7. For additional information, see Health and Safety Code Section 18908. Building Drain. That part of the lowest piping of a drainage system that receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to the building sewer beginning 2 feet (610 mm) outside the building wall. Building Drain (Sanitary). A building drain that conveys sewage only. Building Drain (Storm). A building drain that conveys storm water or another drainage, but no sewage. Building Sewer. That part of the horizontal piping of a drainage system that extends from the end of the building drain and that receives the discharge of the building drain and conveys it to a public sewer, private sewer, private sewage disposal system, or another point of disposal. Building Sewer (Combined). A building sewer that conveys both sewage and storm water or other drainage. Building Sewer (Sanitary). A building sewer that conveys sewage only. Building Sewer (Storm). A building sewer that conveys storm water or another drainage, but no sewage. Building Subdrain. That portion of a drainage system that does not drain by gravity into the building sewer. Building Supply. The pipe is carrying potable water from the water meter or another source of water supply to a building or other point of use or distribution on the lot.

32 2019 CALIFORNIA PLUMBING CODE

DEFINITIONS

205.0Category 1. Activities, systems, or equipment whose fail- – C – ure is likely to cause major injury or death to patients, staff, or visitors. [NFPA 99:3.3.146.1] Category 2. Activities, systems, or equipment whose failure is likely to cause minor injury to patients, staff, or visitors.

[NFPA 99:3.3.146.2] Category 3. Activities, systems, or equipment whose failure is not likely to cause injury to patients, staff, or visitors, but can cause discomfort. [NFPA 99:3.3.146.3] Category 3 Vacuum System. A Category 3 vacuum distribution system that can be either a wet system designed to remove liquid, air-gas, or solids from the treated area; or a dry system designed to trap liquids and solids before the service inlet and to accommodate air-gas only through the service inlet. [NFPA 99:3.3.21] Category 4. Activities, systems, or equipment whose failure would have no impact on patient care. [NFPA 99:3.3.146.4] Certified Backflow Assembly Tester. A person who has shown competence to test and maintain backflow assemblies to the satisfaction of the Authority Having Jurisdiction. Cesspool. A lined excavation in the ground that receives the discharge of a drainage system or part thereof, so designed as to retain the organic matter and solids discharging therein but permitting the liquids to seep through the bottom and sides. Chemical Waste. See Special Wastes. Chimney. One or more passageways, vertical or nearly so, for conveying flue or vent gases to the outdoors. [NFPA 54:3.3.18] Chimney, Factory-Built. A chimney composed of listed factory-built components assembled in accordance with the manufacturer’s installation instructions to form the completed chimney. [NFPA 54:3.3.18.2] Chimney, Masonry. A field-constructed chimney of solid masonry units, bricks, stones, listed masonry chimney units, or reinforced portland cement concrete, lined with suitable chimney flue liners. [NFPA 54:3.3.18.3] Chimney, Metal. A chimney constructed of metal with a minimum thickness not less than 0.127 inches (3.23 mm) (No. 10 manufacturer’s standard gauge) steel sheet. Chimney Classifications:Chimney, High-Heat Appliance-Type. A factory built, masonry, or metal chimney suitable for removing the products of combustion from fuel-burning high-heat appliances producing combustion gases in excess of 2000°F (1093°C), measured at the appliance flue outlet. Chimney, Low-Heat Appliance-Type. A factorybuilt, masonry, or metal chimney suitable for removing the products of combustion from fuel-burning low-heat appliances producing combustion gases not in excess of 1000°F (538°C) under normal operating conditions, but capable of producing combustion gases of 1400°F (760°C) during intermittent forced firing for periods up to one hour. Temperatures are measured at the appliance flue outlet.

A factorybuilt, masonry, or metal chimney suitable for removing the products of combustion from fuel-burning low-heat appliances producing combustion gases not in excess of 1000°F (538°C) under normal operating conditions, but capable of producing combustion gases of 1400°F (760°C) during intermittent forced firing for periods up to one hour. Temperatures are measured at the appliance flue outlet.

Chimney, Medium-Heat Appliance-Type. A factory-built, masonry, or metal chimney suitable for removing the products of combustion from fuel-burning medium-heat appliances producing combustion gases, not in excess of 2000°F (1093°C), measured at the appliance flue outlet. Chimney, Residential Appliance-Type. A factorybuilt or masonry chimney suitable for removing products of combustion from residential-type appliances producing combustion gases, not in excess of 1000°F (538°C), measured at the appliance flue outlet. Factory-built Type HT chimneys have high-temperature thermal shock resistance. Clarifier. See Interceptor (Clarifier). Clear Water Waste. Cooling water and condensate drainage from refrigeration and air-conditioning equipment; cooled condensate from steam heating systems, and cooled boiler blowdown water. Clinical Sink. A fixture that has the same flushing and cleansing characteristics of a water closet that is used to receive the wastes from a bedpan. Also, known as a bedpan washer. Clothes Washer System [HCD 1]. A gray water system utilizing only a single domestic clothes washing machine in a one- or two family dwelling. Coastal High Hazard Areas. An area within the flood hazard area that is subject to high-velocity wave action, and shown on a Flood Insurance Rate Map or other flood hazard map as Zone V, VO, VE or V1-30. Code. A standard that is an extensive compilation of provisions covering broad subject matter or that is suitable for adoption into law independently of other codes and standards. Combination Temperature and Pressure-ReliefValve. A relief valve that actuates when a set temperature, pressure, or both is reached. Also, known as a T&P Valve. Combination Thermostatic/Pressure BalancingValve. A mixing valve that senses outlet temperature and incoming hot and cold water pressure and compensates for fluctuations in incoming hot and cold water temperatures, pressures, or both to stabilize outlet temperatures. Combination Waste and Vent System. A specially designed system of waste piping embodying the horizontal wet venting of one or more sinks or floor drains using a common waste and vent pipe adequately sized to provide free movement of air above the flow line of the drain. Combined Building Sewer. See Building Sewer (Combined). Combustible Material. A material that, in the form in which it is used and under the conditions anticipated, will ignite and burn; a material that does not meet the definition of noncombustible. [NFPA 54:3.3.64.1] Commissaries Serving Mobile Food Preparation Units[DPH]. A food establishment in which food, containers, equipment or supplies are stored or handled for use in vehi- cles, mobile food preparation units, food carts or vending machines.

it is used and under the conditions anticipated, will ignite and burn; a material that does not meet the definition of noncombustible. [NFPA 54:3.3.64.1] Commissaries Serving Mobile Food Preparation Units[DPH]. A food establishment in which food, containers, equipment or supplies are stored or handled for use in vehi- cles, mobile food preparation units, food carts or vending machines.

2019 CALIFORNIA PLUMBING CODE 33

DEFINITIONS any other purpose or distributed to any other persons or parti es.

Common. That part of a plumbing system that is so designed and installed as to serve more than one appliance, fixture, building, or system. Complex System [BSC-CG, HCD 1]. Gray water systems that discharge over 250 gallons (947 L) per day. Condensate. The liquid phase produced by condensation of a gas or vapor. Conductor. A pipe inside the building that conveys storm water from the roof to a storm drain, combined building sewer, or other approved point of disposal. Confined Space. A room or space having a volume less than 50 cubic feet per 1000 British thermal units per hour (Btu/h) (4.83 m ³ /kW) of the aggregate input rating of all fuelburning appliances installed in that space. Construction Documents. Plans, specifications, written, graphic, and pictorial documents prepared or assembled for describing the design, location, and physical characteristics of the elements of a project necessary for obtaining a permit. Construction Site [BSC-CG & HCD 1]. A parcel of land bounded by lot line(s) or a designated portion of a public right-of-way where construction is taking place. A construc- tion site may include, but not be limited to, buildings and accessory structures, walks, sidewalks, curbs, curb ramps, parking facilities, planting areas, pools, promenades, exte- rior gathering or assembly areas, raised or depressed paved areas, open spaces, golf courses, and/or landscape areas. Contamination. An impairment of the quality of the potable water that creates an actual hazard to the public health through poisoning or the spread of disease by sewage, industrial fluids, or waste. Also, defined as High Hazard. Continuous Vent. A vertical vent that is a continuation of the drain to which it connects. Continuous Waste. A drain is connecting the compartments of a set of fixtures to a trap or connecting other permitted fixtures to a common trap. Copper Alloy. A homogenous mixture of two or more metals in which copper is the primary component, such as brass and bronze. Covered Multifamily Dwellings [HCD 1-AC]. See Sec- tion 1.8.2.1.2. CPVC. Chlorinated Polyvinyl Chloride. Critical Care Area. A room or space in which failure of equipment or a system is likely to cause major injury or death to patients or caregivers (Category 1). [NFPA 99:3.3.28] Critical Level. The critical level (C-L or C/L) marking on a backflow prevention device or vacuum breaker is a point conforming to approved standards and established by the testing laboratory (usually stamped on the device by the manufacturer) that determines the minimum elevation above the floodlevel rim of the fixture or receptor served at which the device may be installed. Where a backflow prevention device does not bear a critical level marking, the bottom of the vacuum breaker, combination valve, or the bottom of such approved device shall constitute the critical level. Cross-Connection. A connection or arrangement, physical or otherwise, between a potable water supply system and a

vel rim of the fixture or receptor served at which the device may be installed. Where a backflow prevention device does not bear a critical level marking, the bottom of the vacuum breaker, combination valve, or the bottom of such approved device shall constitute the critical level. Cross-Connection. A connection or arrangement, physical or otherwise, between a potable water supply system and a

plumbing fixture or a tank, receptor, equipment, or device, through which it may be possible for nonpotable, used, unclean, polluted, and contaminated water, or other substances to enter into a part of such potable water system under any condition.

206.0Debris Excluder. A device installed on the rainwater catch- – D – ment conveyance system to prevent the accumulation of leaves, needles, or other debris in the system. Department [HCD 1, HCD 2 and HCD 1-AC]. “Depart- ment” means the Department of Housing and Community Development. Department Having Jurisdiction. The Authority Having Jurisdiction, including any other law enforcement agency affected by a provision of this code, whether such agency is specifically named or not.

revent the accumulation of leaves, needles, or other debris in the system. Department [HCD 1, HCD 2 and HCD 1-AC]. “Depart- ment” means the Department of Housing and Community Development. Department Having Jurisdiction. The Authority Having Jurisdiction, including any other law enforcement agency affected by a provision of this code, whether such agency is specifically named or not.

[HCD 1 & HCD 2] “Department Having Jurisdiction” shall mean “Enforcing Agency” as defined in Section 207.0 of this code. Design Flood Elevation. The elevation of the “design flood,” including wave height, relative to the datum specified on the community’s legally designated flood hazard map. In areas designated as Zone AO, the design flood elevation is the elevation of the highest existing grade of the building’s perimeter plus the depth number (in feet) specified on the flood hazard map. In areas designated as Zone AO where a depth number is not specified on the map, the depth number is taken as being equal to 2 feet (610 mm). Developed Length. The length along the centerline of a pipe and fittings. Diameter. Unless specifically stated, “diameter” is the nominal diameter as designated commercially. Direct-Vent Appliances. Appliances that are constructed and installed so that all air for combustion is derived directly from the outdoors and all flue gases are discharged to the outdoors. [NFPA 54:3.3.5.3] Disinfected Tertiary Recycled Water [BSC-CG, HCD 1,DWR]. Filtered and subsequently disinfected wastewater that meets the approved method of treatment and minimum level of water quality specified in California Code of Regulations, Title 22, Division 4, Chapter 3 for the purpose of direct ben- eficial use. Disposal Field [BSC-CG & HCD 1]. An intended desti- nation for gray water, including but not limited to, a mulch basin or receiving landscape feature, gray water leach field, or other approved method of disposal. Domestic Sewage. The liquid and water-borne wastes derived from the ordinary living processes, free from industrial wastes, and of such character as to permit satisfactory disposal, without special treatment, into the public sewer or by means of a private sewage disposal system. Downspout. The rain leader from the roof to the building storm drain, combined building sewer, or other means of disposal located outside of the building. See Conductor and Leader. Drain. A pipe that carries waste or waterborne wastes in a building drainage system.

34 2019 CALIFORNIA PLUMBING CODE

DEFINITIONS

Drainage System. Includes all the piping within public or private premises that conveys sewage, storm water, or other liquid wastes to a legal point of disposal, but does not include the mains of a public sewer system or a public sewage treatment or disposal plant. Drinking Fountain. A plumbing fixture connected to the potable water distribution system and sanitary drainage system that provides drinking water in a flowing stream so that the user can consume water directly from the fixture without the use of accessories. Drinking fountains should also incorporate a bottle filling station and can incorporate a water filter and a cooling system for chilling the drinking water. Dry Vent. A vent that does not receive the discharge of any sewage or waste. Durham System. Soil or waste system in which all piping is threaded pipe, tubing, or other such rigid construction, using recessed drainage fittings to correspond to the types of piping.

Effective Ground-Fault Current Path.207.0 – E – An intentionally constructed, low-impedance electrically conductive path designed and intended to carry current under ground-fault conditions from the point of a ground fault on a wiring system to the electrical supply source and that facilitates the operation of the overcurrent protective device or ground-fault detectors on high-impedance grounded systems. [NFPA 54:3.3.34] Effective Opening. The minimum cross-sectional area at the point of water supply discharge measured or expressed in terms of (1) diameter of a circle or (2) where the opening is not circular, the diameter of a circle of equivalent cross-sectional area. (This applies to an air gap). Enforcing Agency [BSC, BSC-CG, HCD 1, HCD 2, andHCD 1-AC]. “Enforcing Agency” is the designated depart- ment or agency as specified by statute or regulation. Essentially Nontoxic Transfer Fluid. Essentially nontoxic at practically nontoxic, Toxicity Rating Class 1 (reference “Clinical Toxicology of Commercial Products” by Gosselin, Smith, Hodge, & Braddock). Exam Room Sink. A sink used in the patient exam room of a medical or dental office with a primary purpose of the washing of hands. Excess Flow Valve (EFV). A valve designed to activate when the fuel gas passing through it exceeds a prescribed flow rate. [NFPA 54:3.3.99.3] Existing Work. A plumbing system or any part thereof that has been installed prior to the effective date of this code. Expansion Joint. A fitting or arrangement of pipe and fittings that permit the contraction and expansion of a piping system.

208.0F Rating. The time period that the penetration firestop sys- – F – tem limits the spread of fire through the penetration, where tested in accordance with ASTM E814 or UL 1479.

209.0Gang or Group Shower.– G – Two or more showers in a common area.

Fixture Branch. A water supply pipe between the fixture supply pipe and the water distribution pipe. Fixture Drain. The drain from the trap of a fixture to the junction of that drain with any other drain pipe. Fixture Fitting. A device that controls and guides the flow of water. Fixture Supply. A water supply pipe is connecting the fixture with the fixture branch. Fixture Unit. A quantity in terms of which the load-producing effects on the plumbing system of different kinds of plumbing fixtures are expressed on some arbitrarily chosen scale. Flammable Vapor or Fumes. The concentration of flammable constituents in the air that exceeds 25 percent of its lower flammability limit (LFL). Flood Hazard Area. The greater of the following two areas: (1) The area within a floodplain subject to a 1 percent or

greater chance of flooding in any given year.

(1) The area within a floodplain subject to a 1 percent or

greater chance of flooding in any given year. (2) The area designated as a flood hazard area on a commu nity’s flood hazard map, or otherwise legally designated.

(2) The area designated as a flood hazard area on a commu nity’s flood hazard map, or otherwise legally designated. Flood Level. See Flooded. Flood-Level Rim. The top edge of a receptor from which water overflows. Flooded. A fixture is flooded where the liquid therein rises to the flood-level rim. Flue Collar. That portion of an appliance designed for the attachment of a draft hood, vent connector, or venting system. [NFPA 54:3.3.44] Flush Tank. A tank located above or integral with water closets, urinals, or similar fixtures for the purpose of flushing the usable portion of the fixture. Flush Valve. A valve located at the bottom of a tank for flushing water closets and similar fixtures. Flushometer Tank. A tank integrated within an air accumulator vessel that is designed to discharge a predetermined quantity of water to fixtures for flushing purposes. Flushometer Valve. A valve that discharges a predetermined quantity of water to fixtures for flushing purposes and is actuated by direct water pressure. FOG Disposal System. A grease interceptor that reduces nonpetroleum fats, oils, and grease (FOG) in the effluent by separation, mass, and volume reduction. Food Establishment [DPH]. Any room, building, place or portion thereof, maintained, used or operated for purpose of storing, preparing, serving, packaging, transporting, sal- vaging or otherwise handling food at the retail level. Fuel Gas. Natural, manufactured liquefied petroleum, or a mixture of these.

2019 CALIFORNIA PLUMBING CODE 35

DEFINITIONS any other purpose or distributed to any other persons or parti es.

Gas Piping. An installation of pipe, valves, or fittings that are used to convey fuel gas, installed on a premise or in a building, but shall not include: (1) A portion of the service piping. (2) An approved piping connection 6 feet (1829 mm) or less

in length between an existing gas outlet and a gas appliance in the same room with the outlet. Gas Piping System. An arrangement of gas piping or regulators after the point of delivery and each arrangement of gas piping serving a building, structure, or premises, whether individually metered or not. Governing Body. The person or persons who have the overall legal responsibility for the operation of a health care facility. [NFPA 99:3.3.62] Grade. The slope or fall of a line of pipe in reference to a horizontal plane. In drainage, it is usually expressed as the fall in a fraction of an inch (mm) or percentage slope per foot (meter) length of pipe. Gravity Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oils, and greases (FOG) from a wastewater discharge and is identified by volume, 30 minute retention time, baffle(s), not less than two compartments, a total volume of not less than 300 gallons (1135 L), and gravity separation. [These interceptors comply with the requirements of Chapter 10 or are designed by a registered design professional.] Gravity grease interceptors are generally installed outside. Graywater [BSC-CG & HCD 1]. Pursuant to Health and Safety Code Section 17922.12, "graywater" means untreated wastewater that has not been contaminated by any toilet dis- charge, has not been affected by infectious, contaminated, or unhealthy bodily wastes, and does not present a threat from contamination by unhealthful processing, manufacturing, or operating wastes. "Graywater" includes, but is not limited to, wastewater from bathtubs, showers, bathroom washbasins, clothes washing machines, and laundry tubs, but does not include wastewater from kitchen sinks or dishwashers. Note: For the purpose of applying the standards contained in this code, “Graywater” as defined above, has the same meaning as “gray water”, “grey water”, and “greywater”. Gray Water System [BSC-CG]. A system designed to col- lect gray water to be treated on-site for reuse or distribution to an irrigation or disposal field. A gray water system may include, on-site treated nonpotable water devices or equip- ment, tanks, valves, filters, pumps or other appurtenances along with piping and receiving landscape. Gray Water System [HCD 1]. A system designed to collect gray water on-site for reuse or distribution to an irrigation or disposal field. A gray water system may include, on-site treated nonpotable water devices or equipment, tanks, valves, filters, pumps or other appurtenances along with piping and receiving landscape. Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oil, and greases (FOG) from a wastewater discharge.

disposal field. A gray water system may include, on-site treated nonpotable water devices or equipment, tanks, valves, filters, pumps or other appurtenances along with piping and receiving landscape. Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oil, and greases (FOG) from a wastewater discharge.

Grease Removal Device (GRD). A hydromechanical grease interceptor that automatically, mechanically removes non-petroleum fats, oils and grease (FOG) from the interceptor, the control of which are either automatic or manually initiated. Grounding Electrode. A conducting object through which a direct connection to earth is established. [NFPA 70:100(I)]

210.0Handwashing Fixture [OSHPD 1, 1R, 2, 3, 4 & 5]. – H – Hand- wash fixtures consist of faucet, trim and sink as described: (1) Faucets and Trim

a. Hand washing fixtures used by medical and nursing staff, patients, and food handlers shall be trimmed with valves that can be operated without the use of hands. i. Wrist or elbow blades shall be permitted unless otherwise noted in Table 4-2. ii. Blade handles used for this purpose shall be at least 4 inches (102 mm) in length. b. Sensor operated fixtures shall be capable of func- tioning during loss of normal power. c. Faucets shall not be equipped with an aerator but may be equipped with a non-aerating laminar flow device. d. Temperature Control(s) i. When deck-mounted temperature controls are provided, they shall be equipped with wrist blades at least 4 inches (102 mm) in length or be sensor operated. ii. When faucet-mounted temperature controls are provided, they shall be sensor operated. e. Faucets shall be equipped with gooseneck spouts. A gooseneck spout is a deck or fixture-mounted spout so the discharge point of the spout return is at least 5 inches (127 mm) above the fixture rim. (2) Sinks

a. Sinks in hand-washing fixtures shall be designed and installed to prevent splashing outside of the sink. b. Sinks shall have well-fitted and sealed basins to pre- vent water leaks onto or into the cabinetry or wall spaces. c. Design of sinks and cabinetry shall not permit stor- age beneath the sink basin. Hangers. See Supports. Heat-Fusion Weld Joints. A joint used in some thermoplastic systems to connect the pipe to fittings or pipe lengths directly to one another (butt-fusion). This method of joining pipe to fittings includes socket-fusion, electro-fusion, and saddle-fusion. This method of welding involves the application of heat and pressure to the components, allowing them to fuse together forming a bond between the pipe and fitting. High Hazard. See Contamination. Horizontal Branch. A drain pipe extending laterally from soil or waste stack or building drain with or without vertical

36 2019 CALIFORNIA PLUMBING CODE

DEFINITIONS

sections or branches, which receives the discharge from one or more fixture drains and conducts it to the soil or waste stack or the building drain. Horizontal Pipe. A pipe or fitting that is installed in a horizontal position or which makes an angle of less than 45 degrees (0.79 rad) with the horizontal. Hot Water. Water at a temperature exceeding or equal to 120°F (49°C). House Drain. See Building Drain. House Sewer. See Building Sewer. Hydromechanical Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oil, and grease (FOG) from a wastewater discharge and is identified by flow rate, and separation and retention efficiency. The design incorporates air entrainment, hydromechanical separation, interior baffling, or barriers in combination or separately, and one of the following: (1) External flow control, with an air intake (vent), directly

connected.

(4) A defective fixture, trap, pipe, or fitting. (5) A trap, except where in this code exempted, directly con nected to a drainage system, the seal of which is not pro

(5) A trap, except where in this code exempted, directly con nected to a drainage system, the seal of which is not protected against siphonage and backpressure by a vent pipe. (6) A connection, cross-connection, construction, or condi tion, temporary or permanent that would permit or make

(6) A connection, cross-connection, construction, or condi tion, temporary or permanent that would permit or make possible by any means whatsoever for an unapproved foreign matter to enter a water distribution system used for domestic purposes. (7) The preceding enumeration of conditions to which the

term “insanitary” shall apply, shall not preclude the appli

(1) External flow control, with an air intake (vent), directly

connected. (2) External flow control, without air intake (vent), directly

connected.

(7) The preceding enumeration of conditions to which the

term “insanitary” shall apply, shall not preclude the application of that term to conditions that are, in fact, insanitary. Interceptor (Clarifier). A device designed and installed to separate and retain deleterious, hazardous, or undesirable matter from normal wastes and permit normal sewage or liquid wastes to discharge into the disposal terminal by gravity. Invert. The lowest portion of the inside of a horizontal pipe. Irrigation Field [BSC-CG & HCD 1]. An intended desti- nation for gray water in the receiving landscape, including but not limited to, a drip irrigation system, mulch basin, or other approved method of dispersal for irrigation purposes.

(2) External flow control, without air intake (vent), directly

connected. (3) Without external flow control, directly connected. (4) Without external flow control, indirectly connected.

These interceptors comply with the requirements of Table 1014.2.1. Hydromechanical grease interceptors are generally installed inside.

211.0Indirect-Fired Water Heater. – I – A water heater consisting of a storage tank equipped with an internal or external heat exchanger used to transfer heat from an external source to heat potable water. The storage tank either contains heated potable water or water supplied from an external source, such as a boiler. Indirect Waste Pipe. A pipe that does not connect directly to the drainage system but conveys liquid wastes by discharging into a plumbing fixture, interceptor, or receptacle that is directly connected to the drainage system. Individual Vent. A pipe installed to vent a fixture trap, and that connects with the vent system above the fixture served or terminates in the open air. Industrial Waste. Liquid or water-borne waste from industrial or commercial processes, except domestic sewage. Insanitary. A condition that is contrary to sanitary principles or is injurious to health.

Conditions to which “insanitary” shall apply include the following: (1) A trap that does not maintain a proper trap seal. (2) An opening in a drainage system, except where lawful

that is not provided with an approved liquid-sealed trap.

(2) An opening in a drainage system, except where lawful

that is not provided with an approved liquid-sealed trap. (3) A plumbing fixture or other waste discharging receptor or

device that is not supplied with water sufficient to flush

A plumbing fixture or other waste discharging receptor or

device that is not supplied with water sufficient to flush and maintain the fixture or receptor in a clean condition.

212.0Joint, Brazed. A joint obtained by joining of metal parts – J – with alloys that melt at temperatures exceeding 840°F (449°C), but less than the melting temperature of the parts to be joined. Joint, Compression. A multipiece joint with cup-shaped threaded nuts that, when tightened, compress tapered sleeves so that they form a tight joint on the periphery of the tubing they connect. Joint, Flanged. One made by bolting together a pair of flanged ends. Joint, Flared. A metal-to-metal compression joint in which a conical spread is made on the end of a tube that is compressed by a flare nut against a mating flare. Joint, Mechanical. The general form for gas-tight or liquidtight joints obtained by the joining of parts through a positive holding mechanical construction. Joint, Press-Connect. A permanent mechanical joint incorporating an elastomeric seal or an elastomeric seal and corrosion resistant grip ring. The joint is made with a pressing tool and jaw or ring that complies with the manufacturer’s installation instructions. Joint, Soldered. A joint obtained by the joining of metal parts with metallic mixtures or alloys that melt at a temperature up to and including 840°F (449°C). Joint, Welded. A gastight joint obtained by the joining of metal parts in the plastic molten state.