Standards

DB21/T 4388-2026 Active

DB21/T 4388-2026 Technical specification for application of coal gangue lightweight aggregate concrete

Publish Date: 2026-01-07

DB21/T 4387-2026 Active

DB21/T 4387-2026 Healthy Building Evaluation Criteria

Publish Date: 2026-01-07

DB21/T 4386-2026 Active

DB21/T 4386-2026 Smart Gas Construction Technology Guide

Publish Date: 2026-01-07

DB21/T 4385-2026 Active

DB21/T 4385-2026 Super Low Energy Building Design Code

Publish Date: 2026-01-07

DB21/T 4384-2026 Active

DB21/T 4384-2026 Energy-saving construction and quality acceptance procedures for near-zero energy buildings

Publish Date: 2026-01-07

DB21/T 4383-2026 Active

DB21/T 4383-2026 Sponge Urban Construction, Acceptance and Operation Maintenance Technical Regulations

Publish Date: 2026-01-07

DB21/T 4382-2026 Active

DB21/T 4382-2026 General technical specification for backfilling and repairing mine pits with general industrial solid waste, including iron tailings and steel slag

Publish Date: 2026-01-07

DB21/T 4381-2026 Active

DB21/T 4381-2026 The standardized health prevention and control service specifications for infectious diseases in long-term care institutions

Publish Date: 2026-01-07

DB21/T 4379-2026 Active

DB21/T 4379-2026 General Complex Aviation Equipment Automated Test Technology Guide

Publish Date: 2026-01-07

DB21/T 4378-2026 Active

DB21/T 4378-2026 General Complex Aviation Equipment Ground Test Data Acquisition Technical Specification

Publish Date: 2026-01-07

DB21/T 4377-2026 Active

DB21/T 4377-2026 Underwater Aquatic Product Fishing Robot System Technical Requirements

Publish Date: 2026-01-07

DB21/T 4376-2026 Active

DB21/T 4376-2026

Publish Date: 2026-01-07