BS EN 13476-1:2018 Plastics piping systems for non-pressure underground drainage and sewerage. Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) General requirements and performance characteristics

Pipework systems
Pipes
Plastics
Pipe fittings
Unplasticized polyvinyl chloride
Sewerage
Polyvinyl chloride
Polyethylene
Underground
Plastic pipelines
Grades (quality)
Performance
Polypropylene
Drainage
Designations
Stiffness
Sewers

Link: BS EN 13476-1:2018 Plastics piping systems for non-pressure underground drainage and sewerage. Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) General requirements and performance characteristics
Source: BSI Standards