Corporate Information

High Pressure Gas Certification

"3I C" (exemption matrix 3 ) Certified products

What is "3I 1C"?
3IPressure test (inspection), air tightness test (inspection), thickness test (inspection)
1CMaterials regulation (confirmation)
Results of tests and certified products conducted at one time are reported to the sitting prefectural governor.
Facility Manufacturing Facility(※1)
High Pressure Area (Storage facilities) Low Pressure Area
Finished products and satefy inspection report Shell Test Required by Law -
Air Tightness Test Required by Law Not Required by Law
Thickness Test Required by Law -
Materials Regulation Required by Law Required by Law
Technical Test Applicable Clause
  • Paragraph 1, Article 55, items 5, 7, and 8 of the General Law
  • Paragraph 1, Article 55, item 5 of the General Law
Required classification for inspections and reports Report Required Notification is mandatory for facilities consuming "Specified High Pressure Gas," except for six gases (specified in ※2) that shall be limited to a predetermined amount.
  • Specific High Pressure Gas Consumption (Article 24-2 of the Law)
"Manufacturing license," "complete inspection," and "safety inspection" are required - -
  1. Facilities for special high pressure gas consumption.
  2. Gases (Specified in Article 7, Paragraph 2 of the Enforcement Order): compressed hydrogen, compressed natural gas, liquid oxygen, liquid ammonia, liquefied petroleum gas, liquid chlorine

Symbol Explanation

Required by Law
Required by Law
Not Required by Law
Although not required by law, implementation is necessary for quality control.

Result of Certified Products

Certified products that have passed the necessary criteria will be:

  1. Exempt from completion and safety inspections.
  2. Assured of high quality.

By following the law and utilizing certified products where marked Required by Law will result in benefits marked (1)(2).