Foreword
1 Scope
   1.1 Scope
   1.2 Limitation of use
   1.3 Technical delivery conditions
2 Normative references
3 Definitions and symbols
   3.1 Definitions
   3.2 Symbols
4 Information to be supplied by the purchaser
   4.1 Mandatory information
   4.2 Options
   4.3 Examples
5 Manufacturing process
   5.1 Steelmaking process
   5.2 Fitting-making process and heat treatment
6 Metallurgical properties
   6.1 Chemical composition
   6.2 Mechanical characteristics
   6.3 Weldability
7 Dimensions and tolerances
   7.1 Dimensions
   7.2 Tolerances and dimensions
   7.3 End finishing
8 Appearance, imperfections and repair
   8.1 Appearance
   8.2 Imperfections
   8.3 Repair
9 Inspection and testing
   9.1 General
   9.2 Inspection documents
   9.3 Summary of inspection and testing
   9.4 Inspection and test methods
10 Marking
11 Protection and packaging
Annex A (normative) Alternative specification for all types
        of fittings
      A.1 Steel grade
      A.2 Dimensions
Annex B (informative) A-deviation