1.2 Specific Applications
The term non metallics has a broad definition but in this code refers to the fiber reinforced plastic groups
encompassed by the generic acronyms FRP (fiberglass-reinforced plastic) and GRP (glass-reinforced plastic). The
extruded, generally homogenous nonmetallics, such as high and low-density polyethylene are excluded. Refer to API
574 for guidance on degradation and inspection issues associated with FRP piping.