This standard applies to water supply and drainage engineering design and related fields.
GBJ 125-1989 history
2010GB/T 50125-2010 Standard for basic terms of water and wastewater engineering
1989GBJ 125-1989 Standard for basic terms used in design of water supply and sewerage engineering
GBJ 125-1989 Standard for basic terms used in design of water supply and sewerage engineering was changed to GB/T 50125-2010 Standard for basic terms of water and wastewater engineering .