Download or read book GB T 29712 2013 Translated English of Chinese Standard GBT 29712 2013 GB T29712 2013 GBT29712 2013 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-10-19 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the ultrasonic acceptance level 2 and 3 for full penetration welded joints in ferritic steels, which correspond to the quality levels B and C welds in GB/T 19418. Since the level D welds usually do not require ultrasonic testing in GB/T 19418, there is no ultrasonic testing acceptance level corresponding to the quality level D weld requirements in GB/T 19418. The acceptance levels of this standard apply to ultrasonic testing in accordance with GB/T 11345.