British Standards Document
BS 5481
Specification for unplasticized PVC pipe and fittings for gravity sewers
https://doi.org/10.3403/00036524U
BS 5481 is maintained by PRI/88. The current release of this standard is:
BS 5481:1977 Specification for unplasticized PVC pipe and fittings for gravity sewers
https://doi.org/10.3403/00036524 (published 31/08/1977)
This standard is available from the following sources:
Other historical versions of this standard document also exist: