https://www.taxtmi.com/article/detailed?id=14408 ISO 9809 and ISO 11120 set separate regulatory frameworks for refillable seamless steel gas cylinders based on capacity and application. ISO 9809 (three parts) prescribes material types, manufacturing methods, design criteria, and required tests-hydrostatic, burst, tensile, impact and ultrasonic-plus marking and inspection for smaller, portable cylinders. ISO 11120 provides a comprehensive standard for larger tubes used in bulk transport, specifying high strength material requirements, thick wall design methodology, and an expanded NDT and testing regime including radiographic examination, with defined tolerances and markings. en-us Thu, 15 May 2025 07:33:25 +0530 Thu, 15 May 2025 07:33:25 +0530 TaxTMI RSS Generator https://www.taxtmi.com/article/detailed?id=14408 ISO 9809 and ISO 11120 set separate regulatory frameworks for refillable seamless steel gas cylinders based on capacity and application. ISO 9809 (three parts) prescribes material types, manufacturing methods, design criteria, and required tests-hydrostatic, burst, tensile, impact and ultrasonic-plus marking and inspection for smaller, portable cylinders. ISO 11120 provides a comprehensive standard for larger tubes used in bulk transport, specifying high strength material requirements, thick wall design methodology, and an expanded NDT and testing regime including radiographic examination, with defined tolerances and markings. Articles Other Topics Thu, 15 May 2025 07:33:25 +0530 https://www.taxtmi.com/article/detailed?id=14408