DL/T 821-2017
Radiographic Inspection Technology and Quality Grading of Metal Fusion Welded Butt Joints (English Version)

Standard No.

DL/T 821-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

Professional Standard - Electricity

Latest

DL/T 821-2017

Replace

DL/T 821-2002

DL/T 821-2017 history

• 2017 DL/T 821-2017 Radiographic Inspection Technology and Quality Grading of Metal Fusion Welded Butt Joints
• 2002 DL/T 821-2002 The code of radiographic examinatio of butt welded-joints of pressure steels pipes and tubes
• 1970 DL/T 5069-1996 Code of erection and acceptance for electric power construction-Section of radiographic examination of butt wended joints of pressure steels pipes and tubes