2014GB 50071-2014 Code for Design of Small Hydropower Stations
2002GB 50071-2002 Design code for small hydropower station
1985GBJ 71-1984 Specifications for the design of small hydroelectric power stations(Trial)
GBJ 71-1984 Specifications for the design of small hydroelectric power stations(Trial) was changed to GB 50071-2002 Design code for small hydropower station.