GB 50235-2010 Code for construction of industrial metallic piping engineering (Text of Document is in English) - Beijing translation compay

Contents
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Basic Requirements
3.1 General Requirements
3.2 Grading
4 Inspection of Pipework Components and Materials
4.1 General Requirements
4.2 Valve Inspection
4.3 Inspection of Other Pipework Components
5 Machining of Piping
5.1 General Requi rement
5.2 Pipe Cutting
5.3 Bending Fabrication
5.4 Machining of Rolling Pipe
5.5 Flanging Edge of Pipe o&#114;vfice
5.6 Machining of Jacket Piping
5.7 Fabrication of Miter Elbow
5.8 Fabrication of Piping Support and Hanger
6 Welding and Heat-Treatment After Welding of Piping
7 Installation of Piping
7.1 General Requirement
7.2 Prefabricating for Pipe segment
7.3 Steel Piping Installation
7.4 Piping Installation of Coupling Equipment
7.5 Cast Iron Piping Installation
7.6 Installation of Stainless Steel Piping and Non-Ferrous Piping
7.7 Heat Tracing Piping Installation
7.8 Jacket Piping Installation
7.9 Installation of Anti-Corrosion Lining Piping
7.10 Valve Installation
7.11 Expansion Joint Installation
7.12 Installation of Piping Support and Hanger
7.13 Installation of Static Electricity Grounding
8 Inspection, Examination and Test of Piping
8.1 General Requirement
8.2 Visual Examination
8.3 Non-Destructive Testing of Welding Seam Surface
8.4 Radiographic and Ultrasonic Examinations of Welding Seam
8.5 Hardness Inspection and Other Inspections
8.6 Pressure Test
9 Piping Cleaning and Blowing
9.1 General Requirement
9.2 Water Washing
9.3 Air Blowing
9.4 Steam Blowing
9.5 Degreasing
9.6 Chemical Cleaning
9.7 Oil Cleaning
10 Engineering Delivery
Appendix A Content and the Format for the Record of the Inspection on the Construction Quality.
Explanation of Wording in This Code
List of Quoted Standards