1.1 This standard covers the requirements for centrifugally cast ( spun ) iron low pressure pipes, known as LP pipes, for conveyance of water, gas and sewage, manufactured in metal or sand moulds.
1.2 This standard is applicable to cast iron pipes having spigots and sockets as specified in this standard, and also to pipes with other types of joints particularly rubber joints. In case of rubber joints the inner profile of the socket end of the pipe shall depend on the type of rubber joint ensuring that the overall dimensions are maintained for reasons of safety and interchangeability.
IS 6163-1978 history
1978IS 6163-1978 Specification for centrifugally cast (spun) iron low-pressure piping for water, gas and sewage