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Industry standards for the chemical industry (Note: Standards with red names have been repealed): 1. “Regulations on Technical Documents for the Handover of Chemical Industry Engineering Projects” HG20237-94; 2. “Code for Lifting Operations in Chemical Industry Engineering Construction” HGJ201-83; 3. “Code for Construction and Acceptance of Degreasing Projects” HGJ202-82; 4. “Code for Construction and Acceptance of Chemical Machinery Installation Projects” (General Provisions) HGJ203-83; 5. “Code for Construction and Acceptance of Chemical Machinery Installation Projects” (Opposite-acting Compressors) HGJ204-83; 6. “Code for Construction and Acceptance of Chemical Machinery Installation Projects” (Centrifugal Compressors) HGJ205-92; 7. “Code for Construction and Acceptance of Chemical Machinery Installation Projects” (Small and Medium-sized Piston Compressors) HGJ206-83; 8. “Code for Construction and Acceptance of Chemical Machinery Installation Projects” (Pumps for Chemical Use) HGJ207-83; 9. “Code for Construction and Acceptance of High-pressure Chemical Equipment” HGJ208-83; 10. “Code for Construction and Acceptance of Medium and Low-pressure Chemical Equipment” HGJ209-83; 11. “Code for Construction and Acceptance of Cylindrical Welded Steel Storage Tanks” HGJ210-83; 12. “Code for Construction of Chemical Tower-type Equipment” HGJ211-85; 13. “Code for Construction and Acceptance of Wet-type Gas Cylinders Made of Welded Metal Structures” HGJ212-85; 14. “Code for Construction and Acceptance of Anti-corrosion Projects Using Unsaturated Polyester Resins” HGJ216-79; 15. “Code for Construction and Acceptance of Titanium Pipes” HGJ217-86; 16. “Technical Regulations for Welding Aluminum and Aluminum Alloys” HGJ212-92; 17. “Technical Regulations for Welding and Spot Welding Copper and Copper Alloys” HGJ223-92; 18. “Code for Construction and Acceptance of Chemical Metal Pipe Projects” HG20225-95; 20. “Code for Construction and Acceptance of Furnace Masonry Projects for Chemical Use” HGJ227-84; 21. “Code for Construction and Acceptance of Furnace Masonry Projects in Medium-sized Fertilizer Plants” HGJ228-87; 22. “Code for Construction and Acceptance of Anti-corrosion Projects for Industrial Equipment and Pipes” HGJ229-91; 23. “Technical Regulations for the Construction of Cracking Furnaces in Ethylene Production Facilities” HGJ230-89; 24. “Code of Practice for Commissioning of Large and Medium-sized Chemical Industry Facilities” HGJ23-91; 25. “Code of Practice for Preparation Work Related to the Operation of Large and Medium-sized Chemical Industry Facilities” HGJ232-92; 26. “Safety Regulations for Oil Refining and Chemical Industry Construction” HGJ233-87; 27. “Inspection Outline for Imported Equipment and Materials in Chemical Industry Construction Projects” HGJ20234-93; 28. “Standard for Construction Organization Design in Chemical Industry Construction Projects” HGJ20235-92; 29. “Standard for Quality Inspection and Evaluation of Chemical Equipment Installation Projects” HG20236-93