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NB 23:2004
National Board Inspection Code (nbic)


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General Product Information

Document Type Standard
Status Superseded
Publisher:    National Boiler Inspectorate
Superseded By:
NB 23:2007



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Hardcopy
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Delivery Time:   3-5 days

Table of Contents

Foreword
Introduction
Part RA - Administration Requirements
Part RB - Inservice Inspection of Pressure Retaining Items
Part RC - Repairs and Alterations
Part RD - Repair Methods
Mandatory Appendices
Appendix 1 - Preparation of Technical Inquiries to the National Board
             Inspection Code Committee
Appendix 2 - Stamping and Nameplate information
Appendix 3 - Steam Locomotive Firetube Boiler Inspection and Repair
Appendix 4 - Glossary of Terms
Appendix 5 - National Board Forms
Appendix 6 - Examples of Repairs and Alterations
Appendix 7 - Procedures to Extend the ''VR'' Certificate of Authorization
             Stamp to ASME ''NV'' Stamped Pressure Relief Devices
Non Mandatory Appendices
Appendix A - Standard Welding Procedures
Appendix B - Recommended Preheat Temperatures
Appendix C - (reserved for future use)
Appendix D - Recommended Guide for the Design of a Test System for 
             Pressure Relief Devices in Compressible Fluid Service
Appendix E - Recommended Procedures for Repairing Pressure Relief Valves
Appendix F - Pressure Differential Between Safety or Safety Relief Valve
             Setting and Boiler or Pressure Vessel Operating Pressure
Appendix G - Safety Valves on the Low Pressure Side of Steam Pressure
             Reducing Valves
Interpretations 
Index

Abstract

Provides rules and guidelines for inservice inspection,
repair, and alteration of pressure-retaining items.

History

2004
2001 1ST ADDENDUM [31/12/2001]
2001 [31/08/2001]
98 2ND ADDENDUM [31/12/1999]
98 1ST ADDENDUM [31/12/1998]
98 [01/09/1998]
95 2ND ADDENDUM [31/01/1997]
95 1ST ADDENDUM [13/03/1996]
95 [01/07/1995]
92 3RD ADDENDUM
92 2ND ADDENDUM
92 ADDENDUM
92

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