BS 3868:1995

This standard BS 3868:1995 Specification for prefabricated drainage stack units in galvanized steel is classified in these ICS categories:

• 91.140.80 Drainage systems

This British Standard specifies requirements for prefabricated drainage stack units, manufactured from steel and galvanized after fabrication.

These units are for use above ground, in plumbing systems for wastewater and rainwater; to include pipework within or external to a building, including basements, but excluding pipework which enters the ground.