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Chinese Association Standards

Browse selected Chinese association and group standards where source, applicability, and file availability can be verified.

T/GDFL 016-2025

Published

Technical code for pickup and feed utilization of rice straw

Issued: 2025-07-01
Effective: 2025-08-01

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T/CAIA SH023-2025

Published

Surface water—Determination of ammonia nitrogen—Automatic Nessler's reagent spectrophotometry

Issued: 2025-07-01
Effective: 2025-08-01

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T/CAIA SH024-2025

Published

Surface water—Determination of total nitrogen—Automatic digestion ultraviolet spectrophotometry

Issued: 2025-07-01
Effective: 2025-08-01

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T/ZDG 002-2025

Published

Technical guidelines for water balance test in industrial enterprises

Issued: 2025-07-01
Effective: 2025-07-25

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T/NHCTA 11-2025

Published

Technical specifications for the production of dried fish in Jiujiang Shakou, Nanhai District

Issued: 2025-07-01
Effective: 2025-07-31

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T/NHCTA 9-2025

Published

Issued: 2025-07-01
Effective: 2025-07-31

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T/GDFL 017-2025

Published

Technical code for terraced irrigation and drainage with sponge-based regulation and storage to enhance oxygen and reduce acidity in logged acidic paddy fields

Issued: 2025-07-01
Effective: 2025-08-01

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T/CAIA SH025-2025

Published

Surface water—Determination of total phosphorus—Automatic digestion spectrophotometry

Issued: 2025-07-01
Effective: 2025-08-01

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T/CSIA 019-2025

Published

Criteria for inherently safer enterprises evaluation

Issued: 2025-06-30
Effective: 2025-09-01

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