Section IX of the ASME Boiler and Pressure VesselCode relates to the qualiíìcation of welders, welding operators,brazers, and brazing operators, and the proceduresthat they employ in welding and brazing accorđing to theASME Boiler and Pressure Yessel Code and theASME B31 Code for Pressure Piping. It is divided intotwo parts: Part QW gives requirements for weiding andPárt QB contains requirements forbrazing. Other Sectionsof the Code may specify different requirements than thosespecify by this Section. Such rẹquirements tạke precedenceover those.of.this Section, and the manufacturercontractor shall comply with them.
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