API 6H : 1998 : R2011

1 SCOPE
2 REFERENCES
3 DEFINITIONS
4 GENERAL
   4.1 Fitting Classes
   4.2 Pressure Ratings
   4.3 Temperature Ratings
   4.4 Manufacturer's Hydrostatic Test
   4.5 Dimensions
   4.6 Welding Ends
   4.7 Flanged Ends
   4.8 Bolting
5 DESIGN
   5.1 Design Methods
   5.2 Design Documentation
   5.3 Design Review
   5.4 Design Verification
6 MATERIAL
   6.1 Fitting Material
   6.2 Nonmetallic Parts
   6.3 Welding Qualifications
   6.4 Sulfide Stress Cracking - Sour Service
   6.5 Low Temperature Requirements
   6.6 Welding Requirements
7 MARKING - FITTING MARKING
8 PIPELINE CLOSURES
   8.1 Scope
   8.2 Definition
   8.3 Description
   8.4 Common Applications
   8.5 Other Names
   8.6 Design
   8.7 Closure Configurations
   8.8 Materials
   8.9 Pressure Warning Device
   8.10 Corrosive Service Environment
   8.11 End Configuration
9 CONNECTORS
   9.1 General
   9.2 Definition
   9.3 Common Applications
   9.4 Other Names
   9.5 Design
   9.6 End Configurations
   9.7 Materials
10 COUPLINGS
   10.1 General
   10.2 Definition
   10.3 Description
   10.4 Common Applications
   10.5 Other Names
   10.6 Design
   10.7 Materials
   10.8 Field Welding
11 MISALIGNMENT DEVICES
   11.1 General
   11.2 Definition
   11.3 Description
   11.4 Common Applications
   11.5 Design
   11.6 End Configurations
   11.7 Materials
12 SPLIT MECHANICAL FITTINGS
   12.1 General
   12.2 Definition
   12.3 Description
   12.4 Common Applications
   12.5 Other Names
   12.6 Design
   12.7 Materials
13 QUALITY CONTROL REQUIREMENTS
   13.1 General
   13.2 Measuring And Testing Equipment
   13.3 Quality Control Personnel Qualifications
   13.4 General Quality Control Requirements
   13.5 Records Requirements
14 STORING AND SHIPPING
   14.1 Painting
   14.2 Drawing
   14.3 Corrosion Prevention
   14.4 Sealing Surface Protection
   14.5 Instructions
APPENDIX A - PURCHASE GUIDELINES
APPENDIX B - PURCHASER INSPECTION
APPENDIX C - METRIC CONVERSIONS
APPENDIX D - MARKING INSTRUCTIONS FOR API LICENSEES

Describes the following: a) Pipeline closures; b) Connectors; c) Couplings; d) Misalignment devices (swivels); and e) Split mechanical fittings.