Natural attenuation means the reduction in the con- centration and mass of a substance, and the products into which the substance breaks down, due to naturally occurring physical, chemical and biological processes.
Attenuation block means a block or stack, having dimensions 20 centimeters by 20 centimeters by 3.8 centimeters, of type 1100 aluminum alloy or other materials having equivalent attenuation.
Slash means all debris created on the Work area by the precommercial thinning operation.
Hydraulic lift tank means a tank holding hydraulic fluid for a closed-loop mechanical system that uses compressed air or hydraulic fluid to operate lifts, elevators, and other similar devices.
Disinfection profile means a summary of Giardia lamblia inactivation through the treatment plant.
Backpressure means a pressure (caused by a pump, elevated tank or piping, boiler, or other means) on the consumer's side of the service connection that is greater than the pressure provided by the public water system and which may cause backflow.
Negative pressure respirator (tight fitting) means a respirator in which the air pressure inside the facepiece is negative during inhalation with respect to the ambient air pressure outside the respirator.
Filter means material placed in the useful beam to preferentially absorb selected radiations.
PNode has the meaning set forth in the CAISO Tariff.
low voltage means the set of nominal voltage levels that are used for the distribution of electricity and whose upper limit is generally accepted to be an a.c. voltage of 1000V ( or a d.c. voltage of 1500 V). [SANS 1019]
Scaling as used herein, involves:
Electrostatic application means the application to a substrate of charged atomized paint droplets that are deposited by electrostatic attraction.
Positive pressure respirator means a respirator in which the pressure inside the respiratory inlet covering exceeds the ambient air pressure outside the respirator.
Retrenchment means the termination by the employer of the service of a worker for any reason whatsoever, otherwise than as a punishment inflicted by way of disciplinary action, but does not include—
Pruning means the appropriate removal in accordance with good arboricultural practices of not more than one-third of the live branches or limbs of a tree or more than one-third of the live branches or limbs on a tree as part of a consistent annual pruning program;
Reference evapotranspiration or “ETo” means a standard measurement of environmental parameters which affect the water use of plants. ETo is given expressed in inches per day, month, or year as represented in Appendix C of these Guidelines, and is an estimate of the evapotranspiration of a large field of four to seven-inch tall, cool-season grass that is well watered. Reference evapotranspiration is used as the basis of determining the Maximum Applied Water Allowances.
Loader means any type of off-road tractor with either tracks or rubber tires that uses a bucket on the end of movable arms to lift and move material; can be also referred to as a front-end loader, front loader, skid steer loader, backhoe, rubber- tired loader, or wheeled loader.
Cold Weather Alert means the notice that PJM provides to PJM Members, Transmission Owners, resource owners and operators, customers, and regulators to prepare personnel and facilities for expected extreme cold weather conditions.
Sink means any process, activity or mechanism which removes a greenhouse gas, an aerosol or a precursor of a greenhouse gas from the atmosphere.
Evaporative emissions means the hydrocarbon vapours lost from the fuel system of a motor vehicle other than those from exhaust emissions;
Disinfection means a process which inactivates pathogenic organisms in water by chemical oxidants or equivalent agents.
Moderator means, in connection with this DPA, a verified adult affiliated with and authorized by the Educational Institution to moderate a Student Account or a Classroom, as permitted by the Service.
Slippage means the difference between the expected price of a Transaction in a CFD, and the price the Transaction is actually executed at. Slippage often occurs during periods of higher volatility (for example due to news events) making an Order at a specific price impossible to execute, when market orders are used, and also when large Orders are executed when there may not be enough interest at the desired price level to maintain the expected price of trade.
high voltage means the classification of an electric component or circuit, if its working voltage is > 60 V and ≤ 1500 V DC or > 30 V and ≤ 1000 V AC root mean square (rms).
Connector means a flanged, screwed, welded, or other joined fitting used to connect two pipelines or a pipeline and a piece of process equipment.
Weather Normalized Site EUI means the amount of Energy that would have been used by a property under 30-year average temperatures, accounting for the difference between average temperatures and yearly fluctuations.