Added filtration means any filtration which is in addition to the inherent filtration.
Prewritten computer software means computer software, including prewritten upgrades, which is not designed and developed by the author or other creator to the specifications of a specific purchaser. The combining of two or more "prewritten computer software" programs or prewritten portions thereof does not cause the combination to be other than "prewritten computer software". "Prewritten computer software" includes software designed and developed by the author or other creator to the specifications of a specific purchaser when it is sold to a person other than the purchaser. If a person modifies or enhances "computer software" of which the person is not the author or creator, the person is deemed to be the author or creator only of such person's modifications or enhancements. "Prewritten computer software" or a prewritten portion thereof that is modified or enhanced to any degree, if such modification or enhancement is designed and developed to the specifications of a specific purchaser, remains "prewritten computer software". However, if there is a reasonable, separately stated charge or an invoice or other statement of the price given to the purchaser for such modification or enhancement, such modification or enhancement shall not constitute "prewritten computer software".
Aviation gasoline means fuel designed for use in the operation of aircraft other than jet aircraft,
Traffic lane or "lane" means that portion of a roadway designed or designated to accommodate the
Net concentration means the difference between the concentration of a given substance in a sample taken of the discharge and the concentration of the same substances in a sample taken at the intake which supplies water to the given process. For the purpose of this definition, samples that are taken to determine the net concentration shall always be 24-hour composite samples made up of at least six increments taken at regular intervals throughout the plant day.