1.0.1 This standard is formulated with a view to conform to the city gas engineering design requirements for safe production, reliable supply, reasonable economical efficiency and environmental protection.
1.0.2 This standard is applicable to the design of new, expanded and renovated city gas engineering to supply fuel gas for domestic and commercial use, production of industrial enterprise, heating, ventilation and air conditioning in cities, towns and residence communities, etc..
Note: 1 This standard is not applicable to the long-distance gas transmission pipeline engineering in front of city gate.
2 This standard is not applicable to the design of gas engineering by industrial enterprises themselves for technological design and the gas quality does not conform to the quality requirements of this standard. But the gas engineering by industrial enterprises themselves for technological process and the gas quality conforms to this standard can be designed according to this standard. If the gas for self-use in industrial enterprises is supplied to residents, the gas quality and engineering design shall comply with this standard.
3 This standard is not applicable to the design of gas appliances used in ships, river steamers, railway vehi-cles, automobiles, etc..
1.0.3 During the design of the city gas engineering, the effective new process, technology, materials and equipment should be positively used based on successful experiences in production, construction and scientific experiments in order to ensure the technique is the latest and most economical and reasonable.
1.0.4 The city gas engineering planning and design shall comply with Chinese energy policy. The city gas engineering should be designed in accordance with city master plan as well as energy planning, environmental protection planning and fire-fighting planning, etc..
1.0.5 The design of city gas engineering shall comply not only with the requirement stipulated in this code, but also those in current relevant ones of the nation.
