D1 Interpretations
D1 INTERPRETATIONS - By Code Provision
KEY:
CM = Comment; F = Figure;  SS = Subsection; S = Section; T = Table; SC = Subclause


NO CODE PROVISION
NCP 1984 Earlier Code Editions
NCP 1990 Designer’s Responsibility
NCP 1990 Unequal Leg Fillet Welds
NCP 1990 Groove Depth
NCP 1990 Surface Porosity

APPENDECES (A)
Appendix 1 1990 Reinforcing Fillet Welds
Appendix E 1981 Minimum Requirements
Appendix E 1981 Prequalified WPS Requirements
Appendix X1 1990 Low Hydrogen Welding Process for Base Metal Repair

COMMENT (CM)
CM C5.4.2 1986, 1992 Qualification to Other Codes
CM C5.4.3 1986, 1992 Qualification to Other Codes
CM C6.7.8 1994 Valid Level III Certification

FIGURES (F)
F 2.10.2 1983 Root Openings
F 2.4 1994 Prequalified Joints
F 2.5 1990 Prequalified Flare Bevel Groove Weld Radius
F 2.7.1 1979 Prequalified Skewed T-Joints
F 2.9.1 1986 Backgouged Double-Welded Joints
F 4.21 1994 Visual Inspection of Test Plate
F 5.10.1.3 1984 Qualification Requirements
F 5.21A 1984 6GR Test
F 5.22A 1985 Test Plate Root Opening Tolerances
F 5.27.1 1984 Bend Jigs
F 9.4B 1990 Fatigue Figures
F 9.4C 1990 Fatigue Figures

SECTIONS (S)
S 1.3.1 2002 OEM’s Engineer
S 1.4.1, 4.1.1.1,
   4.1.2.1
 2004
 Qualification Responsibility
S 4 2002 Qualification of CJP Welds with Ceramic Backing
S 5 1992 Welder Qualification to Other Standards
S 5, Part C 1984 Tools for Welder Qualification Test
S 5, Part C 1990 Third Party Welder Qualification
S 5, Part D 1983 Welder/Welding Operator Qualification
S 6 2002 Fillet Weld Inspection
S 6, Part C 1981 Ultrasonic Inspection

SUBSECTIONS (SS)
SS 1.2 1990 Base Material Approval
SS 1.2.2 1979 Code Thickness Limitations
SS 1.2.2 1979 Code ThickneSS Limitations for Performance and WPS Qualification
SS 1.2.3 1990 Code Thickness Limitation
SS 10.12.3.3 1990 Welding Procedure Qualification for T-, Y- and K-Connections
SS 10.2 1982 Welding of Nuts
SS 2.10.1.1 1984 Prequalified Partial Joint Penetration Groove Welds
SS 2.27.2 1996 Ceramic Backing
SS 2.3.2.4 1994 Prequalified Welds
SS 2.3.4 1990 Reinforcing Fillet Welds
SS 2.7.4 1979 Prequalified Skewed T-Joints
SS 3.12.1 1990 Runoff Tab Welds
SS 3.12.1 2002 Qualification of CJP Welds with Ceramic Backing
SS 3.12.1 1985 Corner Radii
SS 3.12.2 1990 Runoff Tab Welds
SS 3.2.1 1981 Mill Scale on Flange Surfaces
SS 3.2.2 1984 Notches and Gouges on Oxygen Cut Surfaces
SS 3.2.4 1982 Reentrant Corners
SS 3.2.4 1985 Corner Radii
SS 3.3.1 1990 Excessive Root Opening
SS 3.5 1980 Web Flatness Tolerances
SS 3.5.1.3 1984 Camber Tolerances
SS 3.6.2 1984 Shelf Bars for Horizontal Column Splice Welds
SS 4.15 1990 Change from “Bridges” to “Dynamically Loaded Structures”
SS 4.4 1990 Vibratory Stress Relief
SS 4.8.1 1994 Visual Inspection of Test Plate
SS 4.8.2 1998 Test Plate Repair
SS 4.8.3.2 1998 Substituting Bend Specimens
SS 4.8.5 1992 Recrushed Slag
SS 5.1.1 1981 Prequalified WPS Requirements
SS 5.1.2 1990 Welder Qualification Documentation
SS 5.1.3 1984 Combination of Qualified and Prequalified WPSs
SS 5.10.3 1983 Filler Welder Qualification
SS 5.10.5 1990 Welding Procedure Qualification Using Plate for Pipe Application
SS 5.12.3 1990 Fillet Weld WPS Qualification
SS 5.12.3 1990 Depth of Fusion
SS 5.13 1981 Witness of Tests
SS 5.15 1996 Condition of Adjacent Weld Areas
SS 5.15 1992 Effect on WPS Qualification Because of Changes in Filler Metal Classification
SS 5.15 1992 Effect on WPS Qualification Because of Changes in Filler Metal Classification
SS 5.16.1 1994 Welder Requalification
SS 5.16.1 1982 Welding of Nuts
SS 5.17 1990 Qualification of Welder to Fillet Weld Studs
SS 5.17.1.2 1983 Filler Welder Qualification
SS 5.18 1984 Qualification Requirements
SS 5.19 1990 Welder Qualification (Backgouged Joints)
SS 5.19 1984 Qualification Requirements
SS 5.2 1990 Qualification of Mixtures of Shielding Gases
SS 5.2 1985 Single Pass Fillet Weld Sizes
SS 5.2 1985 Single Pass Fillet Weld Sizes
SS 5.23.1.1 1990 Pipe Welding Qualification
SS 5.23.2.4 1990 Welder Qualification for Partial Penetration T-, Y-, and K-Connection
SS 5.24 1982 Welding of Nuts
SS 5.25 1981 Performance Qualification WPS
SS 5.26 1981 Performance Qualification RT/Bend Requirements
SS 5.28.6 1986 Welder Qualification (Allowable Undercut)
SS 5.29 1981 Evidence of Qualification
SS 5.3 1981 Welding Personnel Qualification Responsibility
SS 5.3.2 1990 BMAW-S Welder Qualification
SS 5.30 1986 Welder Qualification Retests
SS 5.31 1981 Witness of Tests
SS 5.36 1981 Performance Qualification WPS
SS 5.37 1981 Performance Qualification RT/Bend Requirements
SS 5.4.2 1990 Engineer Acceptance of Welder Qualification
SS 5.4.4 1992 Effect on WPS Qualification Because of Changes in Filler Metal Classification
SS 5.5 1976 Essential Variables
SS 5.5 1990 Qualification of Multiple Welding Processes
SS 5.5.1.3 1990 Base Metal Qualifications
SS 5.5.2.3 1990 Gas Mixture
SS 5.9 2002 Qualification of CJP Welds with Ceramic Backing
SS 6.1.4.1(3) 2002 Inspector Qualifications, Technician
SS 6.13.1 1992 Ultrasonic Inspection
SS 6.13.4 1992 Ultrasonic Inspection
SS 6.15.6 1990 UT Transducers
SS 6.15.6 1992 Ultrasonic Inspection
SS 6.15.7.2 1992 Ultrasonic Inspection
SS 6.17.13 2000 Edge Blocks
SS 6.17.5 2000 Edge Blocks
SS 6.21.2.3 1990 IIW Blocks
SS 6.21.2.4 1992 Ultrasonic Inspection
SS 6.4.1 1981 Qualification Supervision
SS 6.5.4 1979 Inspector Responsibilities
SS 6.5.5 1979 Inspector Responsibilities
SS 6.7.7 1983 NDT Operator Responsibilities
SS 6.7.7 1983 NDT Level III Qualifications
SS 6.7.8 1990 Nationally Approved NDT Qualification Schemes
SS 6.7.8.1 1994 Valid Level III Certification
SS 6.8 1990 Definition of “Partial” and “Spot”
SS 7.3.1 1990 Stud Material Selection
SS 8.10 1990 Transition Joints
SS 8.10 1990 Alignment of Members
SS 8.15.4 1992 Ultrasonic Inspection
SS 8.2.3.3 1990 Auxillary Attachments
SS 9.23 1980 Web Flatness Tolerances

TABLES (T)
T 2.1 1990 Prequalified Flare Bevel Groove Weld Radius
T 2.7 1985 Single PaSS Fillet Weld Sizes
T 4.1 1994 New Electrode Classification
T 4.1 1990 Base Metal Qualifications
T 4.1 1990 A5.29 FCAW Electrodes
T 4.2 2000 Imperial and metric pipe sizes
T 4.2 1990 A5.29 FCAW Electrodes
T 4.4 2002 Fillet Weld Procedure Qualification
T 4.5 1994 Essential Variables
T 4.5 1998 Flux electrode classification essential variable
T 4.5 2000 Variable parameters on welding procedures
T 4.5 2002 Crushed Slag
T 4.5 2002 Fillet Weld Procedure Qualification
T 4.6 2002 Crushed Slag
T4.6, Variable #5
 2006
 Electrodes & Procedure Qualification
T 4.8 1996 Welder Qualification
T 4.9
 2002
 Welder Qualification (Pipe Diameters Qualified)
T 4.10
 2002
 Welder Qualification (Pipe Diameters Qualified)
T 5.1 1990 Pipe Welding Qualification
T 5.10.1(2) 1988 Fillet Weld Qualification by Pipe WPS
T 5.10.1(2) 1988, 1990 Fillet Weld Qualification by Pipe WPS
T 5.10.5 1984 6GR Test
T 5.10.5 1990, 1982 WPS Qualification Tables
T 5.4 1992 Qualification of Welders for Structural Shapes and Tubular Joints over 24 in. in Diameter
T 5.4 1990 Welding Procedure Qualification Using Plate for Pipe Application
T 5.4 1990 Pipe Welding Qualification
T 5.4 1990 Welding Procedure Qualification Using Plate for Pipe Application
T 5.4 1990, 1982 WPS Qualification Tables
T 5.6 1992 Welder Qualification Limitations
T 5.6 1990 Bend Specimen Requirements for Pipe Welder Qualification
T 5.6 1988 Fillet Weld Qualification by Pipe WPS
T 5.6 1988, 1990 Fillet Weld Qualification by Pipe WPS
T 6.2, Note 1 2000 Ultrasonic (UT) acceptance Criteria
T 6.2, Note 2 2002 Ultrasonic (UT) acceptance Criteria
T 6.3 1990 UT Transducers
T 8.2 1990 Ultrasonic Acceptance Tables
T 9.3 1990 Ultrasonic Acceptance Tables

T 10.5

 1990 Welding Procedure Qualification for T-, Y- and K-Connections

SUBCLAUSE (SC)
SC 7.5.5
 2004
 Visual Inspection of Studs