API 6A REDLINE : 2010

API Foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
4 Design and performance - General requirements
5 Materials - General requirements
6 Welding - General requirements
7 Quality control
8 Equipment marking
9 Storing and shipping
10 Equipment-specific requirements
11 Repair and remanufacture
Annex A (informative) - Purchasing guidelines
Annex B (informative) - USC unit tables and data
        for this International Standard
Annex C (informative) - Method of calculating
        stud bolt lengths for type 6B and 6BX
        flanges
Annex D (informative) - Recommended flange bolt
        torque
Annex E (informative) - Recommended weld preparation
        design dimensions
Annex F (informative) - Design validation procedures
Annex G (informative) - Design and rating of equipment
        for use at elevated temperatures
Annex H (normative) - Design and manufacture of surface
        wellhead running, retrieving and tools, clean-out
        tools and wear bushings
Annex I (normative) - Design validation procedures for
        surface safety valves and underwater valves
Annex J (normative) - Repair and remanufacture requirements
Annex K (informative) - Recommended specifications for
        top connectors for christmas trees
Annex L (normative) - Specifications for valve-removal
        preparations, valve-removal plugs and handling
        tools
Annex M (informative) - Qualification of heat-treating
        equipment
Annex N (informative) - List of tables and list of
        figures
Annex O (informative) - API Regional Annex
Annex P (informative) - Use of the API Monogram by
        Licensees and Test Agency Licensing
Bibliography

Describes requirements and recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, purchasing, repair and remanufacture of wellhead and christmas tree equipment for use in the petroleum and natural gas industries.