Foreword 1. Scope 2. Normative Reference 3. Symbols and Codes 4. Dimension and Tolerance 5. Materials 6. Manufacturing and Heat Treatment 7. Inspections 8. Design Verification Test 9. Product Tests 10. Marking 11. Protection and Packaging 12. Product Quality Certification Appendix A (Informative) English Sizes Table of Steel Plate ButtWelding Pipe Fittings Appendix B (Informative) Wall Thickness Classification Table of Steel Pipe Connected to Pipe Fittings |