Standards

DB21/T 4053-2024 Active

DB21/T 4053-2024 DB21/T 4053-2024 Green Exploration Techniques for Solid Mineral Resources Standardization

Publish Date: 2024-11-30

DB21/T 4052-2024 Active

DB21/T 4052-2024 Coordinate and share technical regulations for the production of satellite remote sensing image data

Publish Date: 2024-11-30

DB21/T 4051.2-2024 Active

DB21/T 4051.2-2024 Soil Carbon Stock Inventory and Accounting Methods - Part 2: Wetland Ecosystems

Publish Date: 2024-11-30

DB21/T 4051.1-2024 Active

DB21/T 4051.1-2024 Soil Carbon Stock Inventory and Accounting Methodology Part 1: General Rules

Publish Date: 2024-11-30

DB21/T 4050-2024 Active

DB21/T 4050-2024 Satellite navigation positioning reference station network data processing and service specifications

Publish Date: 2024-11-30

DB21/T 4049-2024 Active

DB21/T 4049-2024 Elderly swallowing safety service requirements in nursing homes

Publish Date: 2024-11-30

DB21/T 4048-2024 Active

DB21/T 4048-2024 The standard for elderly accompaniment medical services

Publish Date: 2024-11-30

DB21/T 4047-2024 Active

DB21/T 4047-2024 Information technology consulting and digital system design requirements

Publish Date: 2024-11-30

DB21/T 20013-2024 Active

DB21/T 20013-2024

Publish Date: 2024-11-26

DB21/T 20012-2024 Active

DB21/T 20012-2024 Road maintenance project base grouting reinforcement technical specifications

Publish Date: 2024-11-26

DB21/T 20011-2024 Active

DB21/T 20011-2024 Highway Reconstruction and Expansion Engineering Subgrade and Pavement Jointing Technical Specification

Publish Date: 2024-11-26

DB21/T 20010-2024 Active

DB21/T 20010-2024 The standard for management and service of snow and ice tourism areas

Publish Date: 2024-11-26