This code applies to the installations, technology and inspection of the installations of the users of specified high-pressure gases (hereinafter referred to as “user installations”) in conformity to the High-pressure Gas Safety Control Act (hereinafter referred to as “the Act”) Article 20, Clause 1. However, this code does not apply to the following high-pressure gas user installations:
(1) Fuel facilities of vehicles using specified high-pressure gas as their fuel,
(2) Installations furnished with slow refueling facilities of compressed natural gas for vehicles and using compressed natural gas
(3) User installations of compressed monosilane, compressed diborane, liquefied align, phosphine, hydrogen selenide, germane, disilane, 5-arsenic fluoride, 5-phosphor fluoride, 3-phosphor fluoride, 3-nitrogen fluoride, 3-boron fluoride, 4-sulfur fluoride, and 4-silica fluoride
1. General
1.1 Scope
1.2 Validity of Code
1.3 Definitions
1.4 Application of Other Codes
1.5 Interim Measures
1.5.1 Interim measure for piping materials
1.5.2 Interim measure for installation of overpressure safety devices
1.5.3 Interim measure for installation of protective walls
1.5.4 Interim measure for installment of sleeve pipes in case piping penetrates through the wall <Newly established on December 13, 2013>
1.5.5 Interim measure for detoxification facilities <Newly established on December 13, 2013>
1.6 Restriction to Use of Appliances
2. Installation Standard
2.1 Layout Standard
2.1.1 Distance from naked lights
2.1.2 Distance from protected installations
2.2 Foundation Standard (currently not used)
2.3 Storage Facility Standard
2.3.1 Materials of storage facilities
2.4 Gas Facility Standard
2.4.1 Materials of gas facilities
2.4.2 Construction of gas facilities (currently not used)
2.4.3 Thickness and strength of gas facilities
2.4.4 Installation of gas facilities
2.4.5 Performance of gas facilities
2.5 Piping Facility Standard
2.5.1 Materials of piping facilities
2.5.2 Configuration of piping facilities
2.5.3 Thickness of piping facilities
2.5.4 Jointing of piping facilities
2.5.5 Measures for absorption of expansion and contraction of piping facilities
2.5.6 Electric insulation of piping facilities
2.5.7 Installation of piping facilities
2.6 Govornor (room) standard (not applicable)
2.7 Burner standard (not applicable)
2.8 Accident Prevention Facility Standard
2.8.1 Installation of overpressure safety devices
2.8.2 Installation of gas leak alarm systems and automatic shutoff devices
2.8.3 Installation of emergency shutoff devices (currently not used)
2.8.4 Installation of check valves
2.8.5 Installation of backfire prevention devices
2.8.6 Installation of hazard monitor and controller
2.8.7 Installation of accidental start prevention devices (currently not used)
2.8.8 Installation of explosion-proof electrical facilities (currently not used)
2.8.9 Installation of ventilation systems
2.8.10 Installation of corrosion protection system
2.8.11 Installation of static eliminators
2.9 Damage Control Facility Standard
2.9.1 Installation of dikes (currently not used)
2.9.2 Installation of protective walls
2.9.3 Installation of sprinkler systems (currently not used)
2.9.4 Installation of detoxification facilities
2.9.5 Installation of neutralization and transfer facilities
2.9.6 Installation of gas supply cutoff devices (currently not used)
2.9.7 Installation of firefighting facilities (currently not used)
2.9.8 Installation of passages (currently not used)
2.9.9 Installation of temperature rise prevention facilities
2.10 Associated Facilities Standard (currently not used)
2.11 Marking Standard
2.11.1 Boundary markings and warning signs
2.11.2 Boundary fences
3. Technical Standard
3.1 Safety Maintenance Standard
3.1.1 Maintenance of foundations (currently not used)
3.1.2 Maintenance of storage facilities
3.1.3 Maintenance of gas facilities
3.1.4 Maintenance of piping facilities (currently not used)
3.1.5 Maintenance of governors (not applicable)
3.1.6 Maintenance of burners (not applicable)
3.1.7 Maintenance of accident prevention facilities
3.2 Transfer and Filling Standard (currently not used)
3.3. Inspection Standard2.8.4 Installation of check valves
3.3.1 Inspection of overall systems (currently not used)
3.3.2 Inspection of foundations (currently not used)
3.3.3 Inspection of storage facilities (currently not used)
3.3.4 Inspection of gas facilities
3.4 Repairs, Standard for Cleaning and Removal
3.4.1 Preparation for repairs, cleaning and removal
3.4.2 Repairs, cleaning and removal works
3.4.3 Follow-up measures of repairs, cleaning and removal
4. Inspection Standard
4.1 Inspection I
