Foreword
1 Scope
2 Warning
3 Normative References
4 Abbreviations
5 Definitions
6 Acceptance Standards and Pipe System Levels
6.1 Applicability
6.2 Alternative Standards of Acceptance
6.3 Structure and Engineering Assemblies Including
Pipework
6.4 Levels of Importance of Pipe Systems
7 Drawings and Contract Requirements
7.1 General
7.2 Visual Inspection
7.3 Liquid Penetrant Examination
7.4 Radiographic Examination
7.5 Ultrasonic Examination
8 Acceptance Standards for Visual Examination of Welds
Excluding Pipe Welds
8.1 General
8.2 Acceptance Standards Class 1, 2 and 3
9 Acceptance Standards for Visual Examination of Pipe Welds
Excluding Socket and Sleeve Welds
9.1 Acceptance Standards for Systems Levels 1, 2 and 3
9.2 Acceptance Standards for System Level 4
10 Acceptance Standards for Magnetic Particle Examination
of all Welds
10.1 General
10.2 Evaluation
11 Acceptance Standards for Liquid Penetrant Examination of
all Welds except Weld Metal Surfacing and Cladding
11.1 General
11.2 Welded Joints
11.3 Evaluation
12 Acceptance Standards for Liquid Penetrant Examination of
Weld Metal Surfacing and Cladding (Excluding Hull Valves)
12.1 General
12.2 Weld Build-Up/Buttering
12.3 Standards for Rounded Indications
13 Acceptance Standards for Radiographic Examination of
Welds Including Pipes
13.1 General
13.2 Defect Evaluation
13.3 Tube-Tubeplate Welds
13.4 Class 1 Acceptance Standard for Structural and
Engineering Assemblies and Pipe Welds in Level 1
Systems
13.5 Class 2 Acceptance Standard (Excluding Aluminium
Alloy) for Structural and Engineering Assemblies
and Pipe Welds in Level 2 and 3 Systems
13.6 Class 2 Acceptance Standard - Aluminium Alloy Welds
14 Acceptance Standards for Ultrasonic Examination of all
Welds except Weld Metal Surfacing and Cladding
14.1 General
14.2 Butt Welds
14.3 Tee-Butt Joints
15 Acceptance Standards for Ultrasonic Examination of Weld
Metal Surfacing and Cladding
15.1 General
15.2 Acceptance Criteria for Weld Metal Surfacing and
Cladding Not Subject to Significant Stress
15.3 Acceptance Criteria for Weld Metal Surfacing and
Cladding Subject To Significant Stress
16 Automated Ultrasonic Acceptance Criteria
16.1 General
16.2 Butt Joints
16.3 Submarine Hull Tee-Butt Joints
16.3.1 Weld root examination (full penetration
welds only)
16.3.2 Weld toe examination
16.4 Defect interaction, butt welds
16.4.1 Defects with a tip 5 mm or closer to the
plate surface
16.4.2 Defects with both tips more than 5 mm from
the plate surface
16.5 Defect Interaction, Submarine Hull Tee Butts, Weld
Toe
16.6 Defect Interaction, Submarine Hull Tee Butts, Root
16.7 Transverse Defects, Submarine Butt Welds
16.8 Porosity
16.8.1 Clustered Porosity
16.8.2 Uniformly distributed porosity
16.8.3 Measurable indications within uniformly
distributed porosity
16.9 Linear thread-like indications
17 Acceptance Standard for the Examination of Sleeve and
Socket Welds
17.1 Visual Examination
17.2 Dye Penetrant Examination
17.3 Radiographic Examination
18 Acceptance Standards for Eddy Current Examination
18.1 General
18.2 Evaluation
19 Rectification of Defects
19.1 General
19.2 Parent Material
19.3 Weld Metal
Annex A - Definitions and Illustration of Weld Imperfections
A.1 Definitions
A.2 Terminology
A.3 Transverse Defects
A.4 Figures