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Database: 189759 (19 Oct 2025)
SL/T 291.1-2021 English PDF
SL/T 291.1: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
SL/T 291.1-2021
English
RFQ
ASK
3 days [Need to translate]
(Water Conservancy and Hydropower Engineering Exploration Regulations - Part 1: Geophysical Prospecting)
Valid
SL/T 291.1-2021
SL/T 291-2020
English
RFQ
ASK
3 days [Need to translate]
Code of drilling for water and hydropower projects
Valid
SL/T 291-2020
SL 291-2003
English
RFQ
ASK
7 days [Need to translate]
Code of practice in drilling for water resources and hydropower engineering
Obsolete
SL 291-2003
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DB/T 10
DB/T 60
SL/T 264
SL/T 299
Basic data
Standard ID
SL/T 291.1-2021 (SL/T291.1-2021)
Description (Translated English)
(Water Conservancy and Hydropower Engineering Exploration Regulations - Part 1: Geophysical Prospecting)
Sector / Industry
Water Resources Industry Standard (Recommended)
Classification of Chinese Standard
P13
Word Count Estimation
384,371
Issuing agency(ies)
Ministry of Water Resources of the People's Republic of China