DB46/T 639-2024 Active

DB46/T 639-2024 Soil and sediment determination of hexavalent chromium using alkaline solution extraction and post-column derivatization ion chromatography

This standard is applicable to the determination of hexavalent chromium in soil and sediments.

Publish Date: 2024-09-23

DB46/T 638-2024 Active

DB46/T 638-2024 Water quality Determination of new nicotine-based pesticides by liquid chromatography-triple quadrupole mass spectrometry

This document is applicable to the determination of eight neonicotinoid pesticides, including Fipronil, Thiamethoxam, Acetamiprid, Thiacloprid, Imidacloprid, Pyriproxifen, Indoxacarb, and Chlorothiamid, in surface water, groundwater, domestic wastewater, industrial wastewater, and seawater.

Publish Date: 2024-09-23

DB46/T 637-2024 Active

DB46/T 637-2024 DB46/T 637-2024 Specification for geological exploration of seawater sand

This document is applicable to the geological exploration of sea sand in Hainan Province and the evaluation of the results thereof.

Publish Date: 2024-09-23

DB46/T 636-2024 Active

DB46/T 636-2024 DB46/T 636-2024 Highway High Liquid Limit Soil Subgrade Design and Construction Technical Specification

This document is applicable to the design and construction of roadbeds made of high liquid limit soil for new and expanded highways at all levels. However, it is not applicable to highways where the high liquid limit soil is determined to be expansive soil.

Publish Date: 2024-09-23

DB46/T 635-2024 Active

DB46/T 635-2024 Red Mangrove Wetland Restoration Area Identification Technical Specification

This document is applicable to existing mangrove forests and new mangrove restoration projects.

Publish Date: 2024-09-23

DB46/T 634-2024 Active

DB46/T 634-2024

This document is applicable to the production management of the entire industrial chain of Dongfeng Luo Company.

Publish Date: 2024-09-23

DB46/T 633-2024 Active

DB46/T 633-2024 DB46/T 633-2024 Agricultural product whole industrial chain production specification Wenchang chicken

This document is applicable to the production and management of the entire industrial chain of Wenchang Chicken.

Publish Date: 2024-09-23

DB46/T 632-2024 Active

DB46/T 632-2024 DB46/T 632-2024 Agricultural product whole industrial chain production specification Mango

This document is applicable to the production and management of the entire mango industry chain.

Publish Date: 2024-09-23

DB46/T 631-2024 Active

DB46/T 631-2024 Full chain production specifications for agricultural products: Coffee

This document is applicable to the production management of the entire coffee industry chain.

Publish Date: 2024-09-23

DB46/T 630-2024 Active

DB46/T 630-2024 DB46/T 630-2024 Agricultural products whole industrial chain production specifications Pepper

This document is applicable to the production management of the entire pepper industry chain.

Publish Date: 2024-09-23

DB46/T 629-2024 Active

DB46/T 629-2024 DB46/T 629-2024 Agricultural products whole industrial chain production specifications Tea

This document is applicable to the production and management of the entire tea industry chain in Hainan Province.

Publish Date: 2024-09-23

DB46/T 628-2024 Active

DB46/T 628-2024 DB46/T 628-2024 Agricultural Products Whole Industrial Chain Production Standards - Pineapple

This document is applicable to the production and management of the entire pineapple industry chain.

Publish Date: 2024-09-23