Alcance
This document provides requirements for the design, manufacturing, and layout of onshore and offshore pig traps allowing entry to a pipeline for the launching and receiving of pigs, inspection tools and other equipment to be run through a pipeline, together with the associated pipework, valves and instrumentation.This document does not apply to installations for automatic launchers or to self-contained pigging valves.This document does not apply to temporary pig traps used only for construction phase.