21 Maximum Distribution of Gas Pockets: Wall Thickness (t) Greater Than 0 in.20 Maximum Distribution of Gas Pockets: Wall Thickness (t) less than or equal to 0 in.17 Incomplete Fusion at Root of Bead or Top of Joint.15 Inadequate Penetration Due to High-low.14 Inadequate Penetration Without High-low.13 Location of Test Butt Weld Specimens for Welder Qualification Test (Half Circumference).12 Location of Test Butt Weld Specimens for Welder Qualification Test (Full Circumference).Qualification Test Welds, Including Size-to-size Branch Connection Welder Qualification Test 11 Location of Nick Break Test Specimens: Branch and Fillet Weld Procedure and Welder.and Welder Qualification Test Welds 10 Location of Nick Break Test Specimens: Branch and Fillet Weld Procedure.9 Side Bend Test Specimen: Wall Thicknesses Greater than 0 in.8 Qualification of Inspection Personnel.8 Inspection and Testing of Production Welds.7 Preheat, Interpass Temperature, Postheat, and PWHT.7 Design and Preparation of a Joint for Production Welding.6 Retesting and Disposition of Test Results.6 Nondestructive Testing (NDT)-Butt Welds Only.5 Testing of Welded Joints-Branch and Fillet Welds.5 Welding of Test Joints-Branch and Fillet Welds.5 Qualification of Welding Procedures with Filler Metal Additions.3 Terms, Definitions, Acronyms, and Abbreviations.Publisher, API Publishing Services, 200 Massachusetts Avenue, NW, Suite 1100, Washington, DC 20001.Ĭopyright © 2021 American Petroleum Institute Contents Contents Contents No part of this work may be reproduced, translated, stored in a retrieval system, or transmitted by any means,Įlectronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Scientific, engineering, and safety judgment should be used in employing the information contained herein.Īll rights reserved. Users of this Standard should not rely exclusively on the information contained in this document. Users of this Standard should consult with the appropriate authorities having jurisdiction. Warrant, or guarantee that such products do in fact conform to the applicable API standard.Ĭlassified areas may vary depending on the location, conditions, equipment, and substances involved in any given Is solely responsible for complying with all the applicable requirements of that standard. Is not intended in any way to inhibit anyone from using any other practices.Īny manufacturer marking equipment or materials in conformance with the marking requirements of an API standard

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