Current Category: CN-DB50 - Chongqing City
This standard applies to the design of medium and major repairs and improvement projects for urban roads in large, medium, and small cities and built-up towns within the urban planning scope of Chongqing City.
This standard specifies the on-site testing methods and capacity determination criteria for distribution transformers with a capacity of 35 kV and below. This standard is applicable to single-phase transformers with a capacity of 35 kV and below, as well as three-phase transformers with connections such as Y/Z.
This standard specifies the classification, specifications, grading, requirements, testing methods, testing rules, packaging marks, storage, and transportation of cotton batts. This standard applies to cotton batts made from cotton as the raw material and cotton yarn as the auxiliary material, which are processed through carding, combing, or cotton batting, spreading cotton, mesh gauze, and grinding.
This standard specifies the definition, requirements, test methods, inspection rules, marking, packaging, and transportation of fresh Shatian pomelos. This standard applies to fresh Shatian pomelos.
This standard specifies the selection and planning of Longshou Shatian pomelo orchards, cultivation management, prevention and control of major pests and diseases, and fruit harvesting. This standard is applicable to the production of Longshou Shatian pomelos.
This standard specifies the grading requirements, testing methods, and testing rules for seedlings of major afforestation tree species. This standard applies to nursery seedlings and afforestation seedlings of major afforestation tree species.
This standard specifies the grading requirements and measurement methods for the seeds of major afforestation tree species. This standard is applicable to tree and shrub seeds used for seedling production, afforestation, and greening purposes.