1.1 This specification covers the materials and testing of shielded hubless couplings to join hubless cast iron soil pipe and fittings. 1.2 Several different types of hubless couplings are available for use in hubless cast iron sanitary and storm drain, waste and vent piping applications to connect hubless cast iron soil pipe and fittings by using a sleeve-type, or some other type coupling device. It is the purpose of this specification to furnish information as