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People's Republic of China Industry Standards

Code for construction and quality acceptance of urban gas indoor projects

Code for construction and quality acceptance of city indoor gas engineering

CJJ 94-2009

Approval department: Ministry of Housing and Urban-Rural Development of the People's Republic of China Date of implementation: October 1, 2009

Announcement No. 272 of the Ministry of Housing and Urban-Rural Development of the People's Republic of China

Announcement on the release of the industry standard "Code for Construction and Quality Acceptance of Urban Gas Indoor Projects"

The Code for Construction and Quality Acceptance of Urban Gas Indoor Projects is now approved as the industry standard, numbered CJJ 94-2009, and will be implemented from October 1, 2009. Among them, 3.2.1, 3.2.2, 4.2.1, 6.3.1, 6.4.1, 7.2.3, 8.1.3, 8.2.4 Articles 8.5.2, 8.3.2, 8.3.3 are mandatory provisions and must be strictly implemented. CJJ 94-2003, the former "Code for Construction and Acceptance of Urban Gas Indoor Projects," was abolished at the same time.
This specification is published by China Construction Industry Press organized by the Standard Quota Research Institute of our Ministry.

Ministry of Housing and Urban-Rural Development of the People's Republic of China
April 7, 2009

Foreword

According to the requirements of the Notice of the Ministry of Construction on the issuance of the "2005 Construction and Standardization Standards and Specifications for Development and Revision Plan (First Batch)" (Build Standard [2005] No. 84), this code is limited by the Beijing Gas Thermal Engineering Design Institute. The company, together with the relevant units, has conducted extensive investigations, carefully summarized practical experience, made reference to relevant international standards and advanced foreign standards, and revised them based on extensive consultation.
The main technical contents of this code include: 1 general provisions; 2 terminology; 3 basic regulations; 4 installation and inspection of indoor gas pipelines; 5 installation and inspection of gas meters; 6 installation of gas appliances and gas equipment for household, commercial and industrial enterprises And inspection; 7 installation and inspection of gas systems for commercial gas boilers and hot and cold water units; 8 tests and acceptances.
The main contents of this revision are:
1 Added regulations on the connection of aluminum-plastic composite pipes, lightning protection and grounding of gas pipelines, installation of gas pipelines laid in pipeline shafts, and installation of gas pipelines laid along external walls;
2 Added requirements for the minimum clear distance between gas meters and burning appliances, electrical facilities, the allowable deviation of gas meter installation, and inspection methods;
3 Added requirements for gas water heater and heating furnace installation and flue installation;
4 Added requirements for installation of pressure regulator and monitoring system.
The provisions marked in bold in this code are mandatory and must be strictly enforced.
The Ministry of Housing and Urban-Rural Development is responsible for the management and interpretation of compulsory provisions, and Beijing Gas Thermal Engineering Design Institute Co., Ltd. is responsible for the interpretation of specific technical content Number; zip code: 100032).
Compiling institutes of this code : Beijing Gas Thermal Engineering Design Institute Co., Ltd.
Participated in this code : Chengdu City Gas Co., Ltd.
Shenyang City Gas Planning Design and Research Institute Co., Ltd.
Beijing Public Works Quality Supervision Station
Chengdu Kangduo Engineering Supervision Co., Ltd.
International Copper Association (China)
Shenzhen Gas Group Co., Ltd.
Hong Kong and China Gas Company Limited
Jilin Zhongji Dadi Gas Group Co., Ltd.
Chongqing Qianwei Krom Watch Industry Co., Ltd.
Foshan Rifeng Enterprise Co., Ltd.
Ningbo Shengzi Machinery Manufacturing Co., Ltd.
Zhongshan Vantage Gas Appliances Co., Ltd.
Changchun Zhenwei Gas Installation Development Co., Ltd.
China City Gas Association
Chengdu Common Pipe Industry Co., Ltd.
The main drafters of this specification : Qi Daming, Luo Qing, Zhu Lijian, Yan Maosen, Bai Liping, Wu Shan, Yang Yonghui, Jing Shuai, Jiang Guofang, Huang Wei, Li Baiqian, Hong Bin, Zhang Shenzheng
Reviewer of this code : Jin Shijian Li Hengjing Du Xia Yuan Yongtai Yu Jingchun Chen Qioxiong Zhang Lin Shen Qiming Li Meizhu Huang Chongzhi Hong Yunlai Wei Qiuyun Gu Shuzheng