BS EN 17176-2:2019 Plastics piping systems for water supply and for buried and above ground drainage, sewerage and irrigation under pressure. Oriented unplasticized poly(vinyl chloride) (PVC-O) Pipes

Angular measurement
Tolerances (measurement)
Test equipment
Diameter measurement
Pipework systems
Geometry
Pipe couplings
Flanges
Dimensional measurement
Accuracy
Thickness measurement
Pipe fittings
Pipes
Plastics

Link: BS EN 17176-2:2019 Plastics piping systems for water supply and for buried and above ground drainage, sewerage and irrigation under pressure. Oriented unplasticized poly(vinyl chloride) (PVC-O) Pipes
Source: BSI Standards

BS EN 13175:2019 LPG Equipment and accessories. Specification and testing for Liquefied Petroleum Gas (LPG) pressure vessel valves and fittings

Gas valves
Type testing
Tanks (containers)
Pressure vessels
Static pressure vessels
Mechanical testing
Tankers
Valves
Leak tests
Liquefied petroleum gas
Design

Link: BS EN 13175:2019 LPG Equipment and accessories. Specification and testing for Liquefied Petroleum Gas (LPG) pressure vessel valves and fittings
Source: BSI Standards