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Cleanroom Control

Pollution Source and Route In Cleanroom

Five stage control at constrution 

Stage
Operation
Duration
Cleaning procedure
Requirement
Level 1
Early Stage of Construction  Site
Before Ceiling Grid and Flooring
a. Clear Garbage Everyday;
b. Keep Work Place Clean;
c. Check Material Storage Everyday and Keep Garbage at Waste Storage Site;
a. No Smoking, Drinking and Playing;
b. Wielding and Duct Cutting Have to Operate at Place Equipped with Fire Extinguisher;
c. Drilling and Cutting  Operation Need to Apply Vacuum Technology;
Level 2
Ceiling grid. Flooring and Setup Perimeter
Before AHU Testing
A .Clear Garbage Everyday;
b. Check Material Storage Everyday and Keep Garbage at Waste Storage Site;
a. Set Security Checkpoint, 2-3 Entrance;
b. Unwrap All Material and Wrap with Paper or Wood Packing Material;
c. Vacuum Cleaning in Daily Basis and Keep Ceiling, Wall and Tools Clean;
Level 3
AHU Testing
Before Installation of HEPA
a. Vacuum and Floor Cleaning on Material Sent to Workplace;
b. Vacuum Cleaning at Entrance Point Everyday;
c. Sticky Pad at Entrance of Clean Room;
a. Only 1 Entrance;
b. No Wood or Paper Material Allow;
c. Floor Protection at Construction Site;
d. Get Permission for Following Action: Drilling, Polishing, Wielding,  Spraying, Drilling, Cutting etc;
Level 4
Installation of HEPA
Before Checking/ Testing
a. At Least 3 Times of Vacuum Cleaning and Floor Washing;
b. Tools Need to Clean of Dust and Oil , Wire Need to in Good Condition Before Enter Clean Room;
a. 1 Entrance / Exit Point;
b. Need Registration for Every Entry;
c. All Tools Need to Meet Specification;
d. No Wood and Paper Product in Clean Room;
e. Floor Protection on Work Floor;
Level 5
System Testing /Checking in Cleanroom
Before Hand on to Owner
A. Rub Cleaning in Daily Basis;
b. At Least 3 Time of Vacuum Cleaning and Floor Washing;
c. Vacuum the Floor with No Cover;
a. 1 Entrance / Exit Point;
c. Need Registration for Every Entry;
d. All Tools Need to Meet Specification;
e. No Wood and Paper Product in Clean Room;
f. Get Permission for Following Action: Drilling, Polishing, Wielding, Spraying, Drilling, Cutting etc;

Principal of control at operation stage
  • Workforce
      −
Rovide training & test for cleanroom concept
      − Follow procedure to go in/out of cleanroom
      − Wear C/R gown to go in/out of cleanroom
      − No personnel with cold, rhinitis or bronchitis
      − Make sure everyone follow the rule
  • Material
      −
Unwrap packing
      − Wiping
      − Through air shower room
      − No chemical product in clear room
      − No scattering in cleanroom
      − No wood and paper product store in cleanroom
  • Tools
      −
Unwrap packing
      − Wipe 0.5% IPA at buffer clean area
      − Relocation tools (roller and steel plate) made of SUS or Teflon
      − Moving thing according the two C/R setting route
  • Equipment
      −
Wiping
      − Protect
      − No peeling paint and corrosion tools
      − Entering through A/S
      − Accessory
      − Unwrapping goods
      − Wiping
      − Entering through A/S
      − No non-replacement item
  • Stationary
      −
C/R/ No photocopy document in cleanroom
      − No pencil, eraser, crayon & pen. Ball pen is allow
      − No marker pen
      − No non cleanroom applicable document, notebook and manuals
      − No cutting, tearing & wiping in cleanroom
      − No blackboard & chalk
  • Communication device
      −
No cellphone, DECT
      − No radio equipment
      − No pager
  • Others
      −
Fire extinguisher, wiring, firefighting equipment and etc.
      − Cleanliness tools
      − Garbage and waste disposal
  • Prohibited acts in clean room
      −
Keep door open all the time
      − No eating & smoking
      − No running
      − No off clothing
      − No scratching
      − No harangue
      − No abnormal action
      − No make-up

 
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