1.0.1 This code is formulated with a view to correctly implementing the principles and policies of the national capital construction in the design of hydrogen station and hydrogen supply station, ensuring safety production, energy conservation, environmental protection, meeting production requirements, and achieving advanced technology and economy and rationality.
1.0.2 This code is applicable to the design of newly-built, renovated or extended hydrogen station and hydrogen supply station and of hydrogen pipeline in plant area and shop.
1.0.3 The production fire hazard category of hydrogen station and hydrogen supply station shall be Category "A".
The explosion hazard grade of room or area with explosion hazard in hydrogen station and hydrogen supply station shall be divided into Zone 1 or Zone 2, and shall meet the requirements of Appendix A of this code.
1.0.4 The design of hydrogen station, hydrogen supply station and hydrogen pipeline shall not only comply with this code, but also those in the current relevant ones of the nation.
2 Terms
2.0.1 Hydrogen station
General term of process facilities, filling facilities, compression and storage facilities, auxiliary facilities and buildings and structures or locations required by hydrogen production through relevant process (for example, pressure swing adsorption by using water electrolysis, natural reformed gas, methanol reformed gas, coke oven gas, water gas, etc. as virgin gas).
2.0.2 Hydrogen supply station
General term of buildings and structures, hydrogen gas receivers or locations, supplying hydrogen through bottles or/and pipelines, excluding hydrogen generation equipment.
2.0.3 Hydrogen gas receiver
General term of containers with constant pressure and variable volume (wet storage holders) and with variable pressure and constant volume, for storing hydrogen.
2.0.4 Open flame site
Fixed site with exposed flame or red heat surface indoors and outdoors.
2.0.5 Sparking site
Chimney with spotting fire or such fixed site as outdoor grinding wheel, electric welding and gas welding (cutting).
2.0.6 Filling hydrogen gas station
General term of buildings and structures or locations of hydrogen gas compression, filling facilities and necessary auxiliary facilities for hydrogen gas filling.
2.0.7 The installation of hydrogen gas produced by electro1ysising water
General term of the combination of such equipment as water electrolyzer, hydrogen (oxygen) gas-liquid separator, hydrogen (oxygen) cooler and hydrogen (oxygen) washer which take water as the raw material.
2.0.8 The system of hydrogen gas produced by electrolysising water
General term of process system composed of the installation of hydrogen gas produced by electro1ysising water and such operating units as hydrogen gas pressurizing, storage, purification and filling, by producing hydrogen gas through water electrolysis process.
2.0.9 The installation of hydrogen purification by pressure swing adsorption
