Reid vapor pressure means the vapor pressure of crude oil or other volatile petroleum products at 100 degrees Fahrenheit as determined by the latest edition of ASTM D6377 (RVPE): Standard Test Method for Determination of Vapor Pressure of Crude Oil.
Working pressure means the settled pressure of a compressed gas at a reference temperature of 15 °C in a full pressure receptacle;
Operating pressure means the pressure at which the parts of an irrigation system are designed by the manufacturer to operate.
Vapor pressure as herein used means Vapor Pressure at 100° Fahrenheit as determined by ASTM Method D-323-90, "Standard Method of Test for Vapor Pressure of Petroleum Products (Reid Method)."
Pressure means relative pressure versus atmospheric pressure, unless otherwise stated.
True vapor pressure means the equilibrium partial pressure exerted by a petroleum liquid as determined in accordance with methods described in American Petroleum Institute (API) Bulletin 2517, Evaporation Loss from External Floating Roof Tanks, 1980. The API procedure may not be applicable to some high viscosity or high pour crudes. Available estimates of true vapor pressure may be used in special cases such as these.
design pressure means the maximum pressure that a pressure vessel or plant is designed to withstand safety when operating normally;
CO2 means carbon dioxide.
Diatomaceous earth filtration means a process resulting in substantial particulate removal in which (1) a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and (2) while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.
Surface waters means all waters of the state as defined in G.S. 143-212 except underground waters
Water Surface Elevation (WSE means the height, in relation to NAVD 1988, of floods of various magnitudes and frequencies in the floodplains of riverine areas.
PAD means a Preauthorized Debit.
Low water pressure means water pressure below the regulatory reference level which is the minimum pressure when demand on the system is not abnormal.
Density means the permitted number of dwelling units per
Built-Up Area and/or “Covered Area” in relation to a Flat shall mean the floor area of that Flat including the area of balconies and terraces, if any attached thereto, and also the thickness of the walls (external or internal) and the columns and pillars therein Provided That if any wall, column or pillar be common between two Flats, then one-half of the area under such wall column or pillar shall be included in the built-up area of each such Flat.
Plant canopy means the square footage dedicated to live plant production and does not include areas such as office space or areas used for the storage of fertilizers, pesticides, or other products.
Diameter means the diameter of the stem of a tree measured outside the bark at a specified point of measurement.
Sewage sludge weight means the weight of sewage sludge, in dry U.S. tons, including admixtures such as liming materials or bulking agents. Monitoring frequencies for sewage sludge parameters are based on the reported sludge weight generated in a calendar year (use the most recent calendar year data when the NPDES permit is up for renewal).
Tank means an enclosed space which is formed by the permanent structure of a ship and which is designed for the carriage of liquid in bulk.
Surface water means all water which is open to the atmosphere and subject to surface runoff.
Pressure vessel means a vessel that may be used for containing, storing, distributing, transferring, distilling, processing or otherwise handling any gas, vapour or liquid under pressure greater than the atmospheric pressure and includes any pipeline fitting or other equipment attached thereto or used in connection therewith; and
Finished water means the water that is introduced into the distribution system of a public water system and is intended for distribution and consumption without further treatment, except as treatment necessary to maintain water quality in the distribution system (e.g., booster disinfection, addition of corrosion control chemicals).
Ambient air means that portion of the atmosphere, external to buildings, to which the general public has access.
Bottled water means water that is placed in a safety sealed container or package for human 696 consumption. Bottled water is calorie free and does not contain sweeteners or other additives except 697 that it may contain: (i) antimicrobial agents; (ii) fluoride; (iii) carbonation; (iv) vitamins, minerals, and 698 electrolytes; (v) oxygen; (vi) preservatives; and (vii) only those flavors, extracts, or essences derived 699 from a spice or fruit. "Bottled water" includes water that is delivered to the buyer in a reusable 700 container that is not sold with the water.
borehole means a hole sunk into the earth for the purpose of locating, abstracting or using subterranean water and includes a spring;
Electrostatic spray means a method of applying a spray coating in which opposite electric charges are applied to the substrate and the coating. The coating is attracted to the substrate by the electrostatic potential between them.