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Specifications - City of Montpelier, Vermont

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Title:<strong>Montpelier</strong> District Heating<strong>City</strong> <strong>of</strong> <strong>Montpelier</strong>, VTAPPENDIX A – Welding and Testing RequirementsIssue Date:September 28, 2012Page #:2 <strong>of</strong> 22TABLE OF CONTENTSI. GENERAL DEFINITIONS ............................................................................................................................ A3II.III.IV.FIELD ERECTION WELDING FOR CARBON STEEL ANSI B31.1 PIPING SYSTEMS .............. A31.0 GENERAL ................................................................................................................................................ A32.0 CODES AND STANDARDS ................................................................................................................... A33.0 DEFINITIONS ......................................................................................................................................... A34.0 BASE MATERIALS ................................................................................................................................ A35.0 WELDING PROCESSES ......................................................................................................................... A46.0 FILLER METALS .................................................................................................................................... A47.0 WELDING PROCEDURES ................................................................................................................... A4^8.0 QUALIFICATION ................................................................................................................................... A59.0 DRAWING DETAILS .............................................................................................................................. A710.0 WELD JOINT CONFIGURATION ......................................................................................................... A811.0 PERMANENT ATTACHMENTS............................................................................................................ A812.0 TEMPORARY ATTACHMENTS ........................................................................................................... A813.0 PREHEAT AND INTERPASS TEMPERATURES ................................................................................. A814.0 WELDING TECHNIQUE AND WORKMANSHIP ................................................................................ A915.0 WELD IDENTIFICATION .................................................................................................................... A1216.0 POSTWELD HEAT TREATMENT ....................................................................................................... A1217.0 INSPECTION ......................................................................................................................................... A1218.0 NONDESTRUCTIVE EXAMINATION (NDE) .................................................................................... A1319.0 REPAIRS ................................................................................................................................................ A1420.0 RECORDS AND SUBMITTALS ........................................................................................................... A14RADIOGRAPHY OF PIPING WELDS .................................................................................................. A151.0 PROCEDURE REQUIREMENTS ......................................................................................................... A152.0 PERSONNEL REQUIREMENTS .......................................................................................................... A153.0 EXAMINATION PROCEDURE............................................................................................................ A154.0 ACCEPTANCE STANDARDS ............................................................................................................. A165.0 REEXAMINATION OF REPAIRS....................................................................................................... A166.0 FREQUENCY OF FIELD RADIOGRAPHIC EXAMINATION ........................................................... A167.0 RECORDS AND SUBMITTALS ........................................................................................................... A17LIQUID PENETRATION EXAMINATION OF PIPING WELDS ........................................................ A171.0 PROCEDURE REQUIREMENTS ......................................................................................................... A182.0 PERSONNEL REQUIREMENTS .......................................................................................................... A183.0 EXAMINATION PROCEDURE............................................................................................................ A184.0 ACCEPTANCE STANDARDS ........................................................................................................... A18^5.0 REEXAMINATION OF REPAIRS....................................................................................................... A196.0 RECORDS AND SUBMITTALS ........................................................................................................... A19V. HYDROSTATIC TESTING OF PIPING WELDS................................................................................. A201.0 PROCEDURE REQUIREMENTS ......................................................................................................... A202.0 EXAMINATION PROCEDURE............................................................................................................ A203.0 ACCEPTANCE STANDARDS ............................................................................................................. A214.0 REEXAMINATION OF REPAIRS....................................................................................................... A215.0 RECORDS AND SUBMITTALS ........................................................................................................... A21APPENDIX APage A2

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