uPVC fittings are used for residential and commercial sanitary systems. PVC is one of the thermoplastic materials most frequently specified for a variety of products used in the pipe and fittings industry. Due to its excellent rigidity, corrosion and chemical resistance properties, it is also used in many chemical related areas. These standards provide the material and test requirements as well as the fitting geometries for PVC fittings. These fittings are joined by threading or solvent cementing and can easily be connected to steel, copper or cast iron through the use of transition fittings.