procedure qualification
2.Welding Procedure Qualification(WPQ) for the Super Pipe Speed Intercepting Valve Weldment of Nuclear ClassⅡ
3.Sonic new ideas and views were proposed, such as regulation on general welding procedure qualification and its method of application, welding procedure qualification between heat exchange tube and tube sheet assessmented by the thickness of fillet weld, and so on.
4.Abstract: By taking the modification project of hydrogen generation unit in a petrochemical plant as an example, the successful welding of heat-resistance ferroalloy with high Cr-Ni content is presented, including weldability analysis, weld procedure qualification test, weld process measures and quality inspection.
5.On the Qualification of Subject of Procedure of the Plaintiff?s Related Interest People in Administrative Action
6.The procedure for uncertainty evaluation to EDXRF measurement results of noble metals was developed to make the results more scientific and provide a technical guarantee to evaluation of products qualification.

