1.4.1 Plastic(s) as used in these guidelines refers
to both thermoplastic and thermosetting plastic materials, with or
without reinforcement, such as uPVC and fibre reinforced plastics
- FRP. Plastic includes synthetic rubber and materials of similar
thermo/mechanical properties.
1.4.2 Piping/Piping systems - The terms piping
and piping systems include the pipe, fittings, system joints, method
of joining and any internal or external liners, coverings and coatings
required to comply with the performance criteria. For example, if
the basic material needs a fire protective coating to comply with
the fire endurance requirements, then the piping should be manufactured
and tested with both the basic material and coating attached and submitted
to the Administration for approval as a material system.
1.4.3 Joint - the term joint refers to the permanent
method of joining pipes by adhesive bonding, laminating, welding,
etc.
1.4.4 Fittings - the term fittings refers to bends,
elbows, fabricated branch pieces, etc., of plastic material.