This International Standard specifies the characteristics of cast iron drainage pipes and fittings used for the installation of: ? discharge pipes for waste and sewage, ? rain water pipe systems, and ? ventilation pipe systems. The technical specification is applicable to the range of nominal sizes, DN: 40 – 50 – 70 – 75 – 100 – 125 – 150 – 200 – 250 – 300 – 400 – 500 – 600. Where applicable, national standards and/or regulations could clarify, and possibly restrict, the field of application of the pipes and fittings covered. In addition, this International Standard gives the dimensions for the most commonly used pipe and fitting sizes. It also provides control testing and test methods for checking compliance with the technical specification and the dimensional and other requirements.