Standards

DB21/T 4191-2025 Active

DB21/T 4191-2025 Technical regulations for selecting vegetable insecticide screens

Publish Date: 2025-10-30

DB21/T 2471-2025 Active

DB21/T 2471-2025 The standardization of prevention and treatment techniques for porcine circovirus disease in large-scale swine farms

Publish Date: 2025-10-30

DB21/T 2009-2025 Active

DB21/T 2009-2025

Publish Date: 2025-10-30

DB21/T 4190-2025 Active

DB21/T 4190-2025

Publish Date: 2025-10-30

DB21/T 4189-2025 Active

DB21/T 4189-2025 Generative artificial intelligence security requirements

Publish Date: 2025-10-30

DB21/T 4187-2025 Active

DB21/T 4187-2025 Zero carbon park evaluation specification

Publish Date: 2025-09-30

DB21/T 4186-2025 Active

DB21/T 4186-2025 Zero carbon (near zero carbon) factory evaluation specification

Publish Date: 2025-09-30

DB21/T 4188-2025 Active

DB21/T 4188-2025 Fuel ash subgrade design and construction specifications

Publish Date: 2025-09-30

DB21/T 4185-2025 Active

DB21/T 4185-2025 Ecological restoration technical specifications for degraded tussah silk plantations

Publish Date: 2025-09-30

DB21/T 4184-2025 Active

DB21/T 4184-2025

Publish Date: 2025-09-30

DB21/T 4183-2025 Active

DB21/T 4183-2025 The cultivation and production specifications for understory five-fingered herbaceous plants

Publish Date: 2025-09-30

DB21/T 4182-2025 Active

DB21/T 4182-2025 Soil-rich coastline afforestation technical regulations

Publish Date: 2025-09-30