Current Category: CN-CJ - Urban construction
本标准适用于连续梁桥和连续刚构桥的悬臂浇筑施工
This standard specifies the terms and definitions, classification and models, operating conditions, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of circular plate-shaped, bell-shaped, tubular, spherical, and spherical corundum microporous aerators.
This standard applies to the manufacture and inspection of corundum microporous aerators used in water treatment.
This standard specifies the terms and definitions, classification and models, working conditions, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of disc-type, tube-type, and plate-type rubber membrane micro-porous aerators.
This standard applies to the manufacture and inspection of rubber membrane micro-porous aerators used in water treatment.
This standard specifies the quality standards and testing methods for domestic hot water in centralized hot water supply systems.
This standard applies to the quality of domestic hot water in centralized hot water supply systems whose raw water quality meets the requirements of GB 5749, "Hygienic Standards for Domestic Drinking Water".
This standard specifies the terms and definitions, type models and basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of swimming pool dehumidification and heat recovery heat pumps (hereinafter referred to as "heat recovery heat pumps").
This standard applies to motor-driven, steam-compression refrigeration cycle heat pumps that recover indoor humid and hot air as a heat source and provide pool water heating, dehumidification, and air conditioning for indoor swimming pools. Heat recovery heat pumps for indoor water amusement pools, spa pools, hot spring pools, and public baths can be implemented with reference to this standard.
This standard specifies the terms and definitions, types, models, and basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of rotary disc aerators used in wastewater treatment (hereinafter referred to as "aerators").
This standard applies to the manufacture and inspection of rotary disc aerators in wastewater treatment projects.
This standard specifies the terms and definitions, types, models, and basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of crawler-type silt suction machines (hereinafter referred to as "silt suction machines") used in wastewater treatment.
This standard applies to the manufacture and inspection of silt suction machines in wastewater treatment projects.
本标准适用于市政工程施工安全生产的检查评定
This standard specifies the terms and definitions, classification and models, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of microfiltration water treatment equipment.
This standard applies to the production and inspection of microfiltration membrane filtration equipment in water treatment.
This standard specifies the terms and definitions, classification and models, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of ultrafiltration water treatment equipment (hereinafter referred to as the equipment).
This standard applies to the production and inspection of ultrafiltration membrane filtration equipment in water treatment.
This standard specifies the functional requirements, physical layer, data link layer, data security, and application layer for data transmission of household metering instruments (hereinafter referred to as "instruments").
This standard is applicable to centralized meter reading systems in which data is exchanged between a master station and a slave station, either in a one-to-one or one-to-many configuration.