DB21/T 1791-2025 Active Liaoning ProvinceLocal standards

\nDB21/T 1791-2025 Precipitation Resource Assessment

DB21/T 1791-2025 DB21/T 1791-2025 Rainwater Resources Assessment for Drought Relief Operations

Publish Date: 2025-04-30 Implement Date: 2025-05-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: DB21/T 1791-2025

Standard Type: Local standards

Standard Status: Active

is_force_gb: no

CCS Name: Meteorology

ICS Name: Geology, meteorology, and hydrology

Publish Date: 2025-04-30

Implement Date: 2025-05-30

Development Information

Replace the following standards

DB21/T 1791-2010 Yearly water resources assessment level

Related Standards

GB/T 1920-1980 Abolished

GB/T 1920-1980 Standard atmosphere (below 30 kilometers)

Publish Date: 1980-04-01

GB/T 958-1989 Replaced

GB/T 958-1989 Geological symbols used for regional geological maps (1:50000)

Publish Date: 1989-02-22

GB/T 11615-1989 Replaced

GB/T 11615-1989 Geologic exploration standard of geothermal resources

Publish Date: 1989-08-29

GB/T 12329-1990 Active

GB/T 12329-1990 Karst geology terminology

Publish Date: 1990-04-19

GB/T 12745-1991 Replaced

GB/T 12745-1991 Static penetrometer

Publish Date: 1991-03-21

GB/T 12746-1991 Replaced

GB/T 12746-1991 Standard penetrometer

Publish Date: 1991-03-21