Read Carefully and Take Test Annex B: In-service Welding B.1 General This annex provides welding practices for making repairs to and installing appurtenances on piping systems that are in service. Of particular importance are the welds that melt into the carrier pipe since they cool at an accelerated rate due to the quenching effect of … Read more
Read Carefully and Take a Test Section 12: Mechanized Welding with Filler Metal Additions Section 12 provides the rules for qualifying welding procedures and personnel for mechanized welding with filler metal additions. It further addresses production welding along with inspection and NDT of production welds.. 12.1 Acceptable Processes Mechanized welding shall be performed using one … Read more
Read Carefully and Take a Test Section 9: Acceptance Standards for NDT 9.1 General This section presents acceptance standards for imperfections found by radiographic, magnetic particle, liquid penetrant, ultrasonic, and visual testing. NDT shall not be used to select welds that are to be destructively tested for welder qualification. 9.2 Rights of Rejection The acceptance … Read more
Read Carefully and Take a Test Section 7: Design and Preparation of a Joint for Production Welding The purpose of Section 7 is to establish requirements for production welding. 7.1 General Production welding shall be performed only by qualified welders using qualified welding procedures. This paragraph identifies the cleanliness requirements for the surfaces to be … Read more