Updated KGS Standards for Pressure Vessels in Korea
23. January 2025Effective January 2025, Korea has introduced updates to its KGS AC111 standard, which applies to high-pressure gas storage tanks and pressure vessels. These revisions, issued by the Ministry of Trade, Industry, and Energy under the Korean Gas Safety Corporation (KGS), emphasize stricter safety protocols and testing measures. Pressure vessels falling under this standard typically require KGS certification for approval in Korea.
The revised AC111 prohibits the use of nickel and nickel alloy steels susceptible to embrittlement in liquid hydrogen conditions. It mandates new insulation performance tests to measure hydrogen loss over 24 hours and requires manufacturers to conduct helium leakage and vacuum tests, including room-temperature and cryogenic vacuum inspections. Thermal treatment for pressure-bearing components made of 304L stainless steel must now comply with ASME Sec. VIII Div.1 standards. Design enhancements include mandatory vacuum measurement ports and filters in insulation spaces. Exemptions have also been introduced for storage tanks located in specific regulatory zones.
Feel free to contact us any time if you need assistance or have any questions regarding Korean certifications like KC, KC EMC, KCs, KCs for explosion safety products or KGS factory registration.
Tel. Europe: +49-69-271 37 69 259
Tel. US: +1 773 654-2673
Email: info@korea-certification.com
For more information you can download our free brochure “Korea Certification Made Easy – The Booklet“.
