Pyrolysis means the thermal degradation of a substance in the absence of any oxidising agent, which does not form part of the substance itself, to produce char and gas and/or liquid; and
Grab sample means an individual sample collected in less than 15 minutes in conjunction with an instantaneous flow measurement.
Soft drinks means nonalcoholic beverages that contain natural or artificial sweeteners. "Soft drinks" does not include beverages that contain milk or milk products, soy, rice, or similar milk substitutes, or that contains greater than fifty per cent vegetable or fruit juice by volume.
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).