2012CECS 140-2011 Specification for structural design of buried prestressed concrete pipeline and prestressed concrete cylinder pipeline of water supply and sewerage engineering
1990CECS 16-1990 Code for structural design of prestressed concrete water pipes
CECS 16-1990 Code for structural design of prestressed concrete water pipes was changed to CECS 140-2011 Specification for structural design of buried prestressed concrete pipeline and prestressed concrete cylinder pipeline of water supply and sewerage engineering.