Cleanroom Engineering Quality Standard Shanghai Sujing

**Cleanroom Engineering Quality Standards - Shanghai Sujing**  Maintaining high-quality standards in cleanroom engineering is essential for ensuring a controlled and contamination-free environment. Below are the key guidelines that must be followed during the construction and installation of various components in a cleanroom project, including color steel plates, air ducts, water pipes, electrical systems, and more. 1. **Hanging Codes**: The spacing between T-profile hanging codes should not exceed 1.5 meters. FFUs (Fan Filter Units) and high-efficiency air supply outlets must have four lifting points each, with tight and secure fastening. 2. **Partition Walls**: Color steel plate walls must be installed at a 90-degree angle, measured using a square ruler. Upper and lower sections should be reinforced with slot aluminum. All connections must be seamless, with glass glue used to fill any gaps. At 90-degree corners, especially where the ceiling and side walls meet, angle aluminum (up to 80 cm) should be used for reinforcement. Curved or straight joints should be sealed with tees, top balls, or plugs. Electrical devices such as sockets, switches, fire hydrants, and air showers must be properly sealed with glass glue and maintain a neat appearance. 3. **Ceiling Installation**: The interface between color steel plates must be tightly sealed with glass glue. Joints should be reinforced with angle iron or angle aluminum, spaced no more than one meter apart. If an opening is present, the damaged area should be replaced. Gypsum ceilings should be finished before installing the color steel plate ceiling. 4. **Outer Cylinder**: Before delivery, the outer cylinder must remain intact, clean, and wrapped in protective paper. It should be straight and free from damage. 5. **Color Steel Plate Doors**: Door closers and locks must be secure with no gaps. The door must be fully sealed on all sides. 6. **Glass Observation Windows**: After installation, the windows must be clean, smooth, and vibration-free. Glass glue should be applied around the edges, and double-sided windows must remain clean and well-sealed. 7. **High-Efficiency Filters**: The filter core must be fixed securely with four corners, and there should be no air leakage. This can be verified using a laser particle counter. FFUs follow similar standards. 8. **Diffusers**: Diffusers must be cleaned before installation and sealed with tape afterward. 9. **Pre-Acceptance Cleaning**: Before final inspection, all equipment such as air showers and transfer windows must be thoroughly cleaned, along with return air columns and walls. 10. **Site Hygiene**: The site must be cleaned daily before work begins. Excessive waste should be reported to management for proper disposal. Materials should be neatly stacked, and loose screws, nuts, and rivets must be placed in designated areas as instructed by company staff. 11. **Electrical Box Controls**: Each electrical box must have clearly labeled switches. 12. **Power Supply Interface**: The power supply interface must be marked with fire, zero, and ground lines, using wire colors or designated cloth. 13. **Wiring Integrity**: Wires must not be damaged or stripped. 14. **Wiring Layout**: Before construction, the size and layout of all equipment and lighting circuits must be discussed with management. 15. **Pipe Clamps**: Pipe clamps must be used to secure pipes, and they should not be loose. 16. **Fittings**: Every route must include a tee or elbow. 17. **Lighting and Equipment Wiring**: Before installation, wiring for lights and equipment must be approved by management, with diagrams or sketches provided. 18. **Floor Protection**: After flooring is completed, all workers must wear slippers inside the workshop and avoid wearing them outside, near color steel plates, ducts, or water pipes. 19. **Sealing Gaps**: Glass glue must be applied between color steel plates and walls. 20. **Filter Sealing**: Glass glue should be used to seal the contact surfaces between high-efficiency filters and color steel plates. 21. **Circuit Diagrams**: Circuit diagrams must be completed according to drawings, with no shortcuts taken. 22. **Concealed Outlets**: Concealed switches and sockets must have a conduit, and the gap between the outlet and the wall must be sealed with glue. 23. **Post-Installation Checks**: After color steel plate installation, check for any small installations, short circuits, or material damage. Report any issues to Party A immediately. 24. **Door Functionality**: Color steel plate doors must open and close smoothly, with flexible locks. 25. **Door Seals**: Door joints must be sealed with vertical curtains. 26. **Opening Sealing**: Any openings in the color steel plates must be sealed with glass glue. *Note: These standards apply specifically to color steel plates.* **Air Duct Standards** 1. **Duct Assembly**: If the floor has a thin coating, it must be paved according to Party A’s requirements. Ducts must be glued before installation, with screws used at the joints. Ensure the four corners are tightened, and use sealing strips and clips (with a standard spacing of 10 cm). Seal the air outlet with tape after lifting. 2. **Hanging Code Spacing**: For ducts above 1500 mm, the spacing should be 2 meters. For those below 1500 mm, the spacing should be 2–3 meters. 3. **Insulation Cotton**: After hoisting, insulation cotton must not leak or be damaged. 4. **Air Supply Opening**: The diameter of the air supply opening must match the duct. Special cases require prior consultation with management and sealing with glass glue. 5. **Valve Installation**: Install valves according to drawings. If unclear, consult with management. 6. **Duct Reinforcement**: Ducts larger than 1500×500 mm must be reinforced. 7. **Reinforcement Negotiation**: Reinforcement of equipment room ducts must be discussed with management before installation. 8. **Leakage Check**: Ensure no air leakage at hose connections, with a clean and professional appearance. 9. **Space Constraints**: If space is limited and cannot follow the drawings, consult with management before proceeding. 10. **Duct Cleaning**: Clean the inside of the duct before lifting. 11. **Anti-Rust Coating**: All angle iron must be coated with anti-rust paint. 12. **Insulation Hose Integrity**: Insulation hoses must not be damaged. 13. **Site Hygiene**: Daily cleaning is required. Excess waste must be reported to management. Materials must be neatly stacked. Loose parts must be stored in designated locations. 14. **Duct Arrangement**: Ducts must be arranged according to company instructions. 15. **Floor Protection**: Workers must wear slippers after flooring is complete and avoid wearing them outside the workshop. 16. **Air Leakage Prevention**: No air or light leakage at duct interfaces. 17. **Insulation Tightness**: Insulation cotton must be tightly packed and not fall off. 18. **Complete Coverage**: Insulation must fully cover ducts, high-efficiency units, etc., without omissions. 19. **Pre-Inspection Condition**: Insulation cotton must not be damaged before acceptance. 20. **Insulated Hose Finish**: The connection of insulated hoses must be sealed with a package adjustment valve, with no exposed fibers like rock wool. 21. **Return and Supply Pipes**: Return and supply pipes must be insulated. 22. **Regulator Valve**: After installation, the regulator valve must be fully opened. Commissioning must be done with Party A personnel. 23. **Duct Corner Sealing**: Apply glass glue around the corners of the duct. *Note: These standards apply specifically to air ducts.* **Water Pipe Standards** 1. **Trend Negotiation**: Before connecting water pipes, the pipe trend must be discussed with management. 2. **Fitting Construction**: Fittings must be made according to the company's construction drawings. 3. **Connection Integrity**: Iron, PVC, and copper pipe connections must be tight and leak-free. 4. **Spray Installation**: Spray systems must be installed close to the color steel plate, with glass glue applied around the base. 5. **Rail Installation**: Water supply and drainage pipes, including PVC, must be installed on non-damagable rails. 6. **Insulation Leak Check**: No leaks should occur on insulated pipes. 7. **Pipe Fixation**: PVC pipes must be fixed with pipe clamps, while iron pipes must be secured with angle iron, ensuring no looseness. 8. **Rain Protection**: Pumps must have rain protection, such as rain caps. 9. **Anti-Rust Treatment**: Angle iron used to fix water pipes must be coated with anti-rust paint. 10. **Electrical Box Labels**: Switch controls must be clearly marked. 11. **Power Interface Marking**: Fire, zero, and ground lines must be clearly identified using wire colors or designated cloth. 12. **Wiring Integrity**: Wire skins must not be peeled or broken. 13. **Wiring Planning**: Before construction, the size and layout of all equipment and lighting circuits must be discussed with management. 14. **Pipe Clamp Use**: Pipe clamps must be used for fixing pipes, ensuring no looseness. 15. **Three-Way Connections**: Each route must include a tee or elbow. 16. **Lighting Wiring**: Before installation, wiring for lights and equipment must be approved by management, with diagrams or sketches provided. 17. **Floor Protection**: After flooring is completed, all workers must wear slippers inside the workshop and avoid wearing them outside. 18. **Copper Pipe Insulation**: Copper pipe insulation must be strictly drip-proof. 19. **Ice Addition**: Ice must be added sufficiently, especially when Party A is on-site. 20. **Line Protection**: Main lines, pumps, and water towers must be protected with wires or bellows. 21. **Electric Box Cover**: An insulation protection board must be installed on the electric box. If missing, report to Party A for installation. 22. **Safety Signs**: Areas with high voltage must be marked with safety signs for Party A’s personnel. 23. **Air Conditioning Drainage**: Air conditioning units must be installed with proper drainage, avoiding internal water accumulation. Internal cables must be waterproofed. 24. **Pump and Tower Alignment**: Water pumps and towers must not be tilted (maximum tilt allowed is 0.5 mm). 25. **Fan Commissioning**: After fan commissioning, the fan must rotate forward. Pulleys must be tight and not tilted, with no noise. 26. **Switch Labeling**: Each control switch must be labeled with its corresponding function. 27. **Single Control**: No switch should control multiple objects without Party A’s approval. 28. **Weak Current Switches**: The number of weak current switches must not be reduced without authorization. 29. **Wiring Organization**: All wiring inside the electric box must be wrapped and not left scattered. By following these detailed quality standards, the cleanliness, safety, and functionality of the cleanroom environment can be ensured, meeting both technical and aesthetic expectations.

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