APHP definition
APHP means the Association of Professional Heritage Practitioners.
NPS means nominal pipe size.
APC means the Ambulatory Payment Classification system under 42 CFR 419.31 used by Medicare for grouping clinically and resource-similar procedures and services.
SDS means safety data sheet, the written listing of data for the chemical substance.
L.S.D. means lysergic acid diethylamide.
TMDL means the total maximum daily load limitation of a parameter, representing the estimated assimilative capacity for a water body before other designated uses are adversely affected. Mathematically, it is the sum of wasteload allocations for point sources, load allocations for non-point and natural background sources, and a margin of safety.