DIN EN ISO 16148 : 2020 Title: Gas cylinders - Refillable seamless steel gas cylinders and tubes - Acoustic emission examination (AT) and follow-up ultrasonic examination (UT) for periodic inspection and testing (ISO 16148:2016 + Amd 1:2020) (includes Amendment :2020) Year: 2020 Publisher: DIN Media GmbH Availability: Within 1-2 working days