SL 291-2003
Code of practice in drilling for water resources and hydropower engineering (English Version)
- Standard No.
- SL 291-2003
- Language
- Chinese, Available in English version
- Release Date
- 2003
- Published By
- Professional Standard - Water Conservancy
- Status
- 2021-02
- Replace By
- SL/T 291-2020
- Latest
- SL/T 291-2020
- Replace
- DL 5013-1992
- Scope
- This standard applies to geological drilling work for water conservancy and hydropower projects.
SL 291-2003 history
- 2018 NB/T 35115-2018 Drilling Regulations for Hydropower Engineering
- 2005 DL/T 5013-2005 Code of operation in drilling for hydropower and hydraulic engineering
- 1993 DL 5013-1992 Specification for drilling in hydraulic and hydroelectric engineering
SL 291-2003 Code of practice in drilling for water resources and hydropower engineering has been changed from DL 5013-1992 Specification for drilling in hydraulic and hydroelectric engineering.
SL 291-2003 Code of practice in drilling for water resources and hydropower engineering was changed to SL/T 291-2020 Drilling regulations for water conservancy and hydropower projects.
