DS DS 2077.2
DS DS 20772 1983-JAN-01 Plastcs ppes - Dran ppes and fttngs - Testng and nspectons
DS DS 20772 1983-JAN-01 Plastcs ppes - Dran ppes and fttngs - Testng and nspectons
The standard deals with testing and inspection of corrugated drain pipes and fittings of plastics to be used by field drainage, drainage in the building field, and in the field of other construction works.