Standards

DB21/T 4416-2026 Active

DB21/T 4416-2026 Multidimensional film and television metadata intelligent annotation requirements

Publish Date: 2026-04-01

DB21/T 4417-2026 Active

DB21/T 4417-2026 Data Annotation Specification for Cost Estimation of Construction Engineering

Publish Date: 2026-04-01

DB21/T 4418-2026 Active

DB21/T 4418-2026 Multimodal medical image data annotation specification

Publish Date: 2026-04-01

DB21/T 4419-2026 Active

DB21/T 4419-2026

Publish Date: 2026-04-01

DB21/T 4413-2026 Active

DB21/T 4413-2026 Soft soil seabed resource development and disaster early warning investigation technical specification

Publish Date: 2026-03-30

DB21/T 3722.4-2026 Active

DB21/T 3722.4-2026 Guidelines for High Standard Farmland Construction Part 4: Design Engineering Quantity

Publish Date: 2026-03-30

DB21/T 3722.5-2026 Active

DB21/T 3722.5-2026 Guidelines for High Standard Farmland Construction - Part 5: Quantity List

Publish Date: 2026-03-30

DB21/T 3722.6-2026 Active

DB21/T 3722.6-2026 Guidelines for High Standard Farmland Construction - Part 6: Construction Organization Design

Publish Date: 2026-03-30

DB21/T 1691-2026 Active

DB21/T 1691-2026

Publish Date: 2026-03-30

DB21/T 4414-2026 Active

DB21/T 4414-2026

Publish Date: 2026-03-30

DB21/T 4415-2026 Active

DB21/T 4415-2026 Seedling cultivation technology for Prunus Mandshurica

Publish Date: 2026-03-30

DB21/T 4412-2026 Active

DB21/T 4412-2026 The technical specifications for offshore facilities cultivation of the middle-sea sea urchin

Publish Date: 2026-02-28