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Message ID: 241     Entry time: Fri Oct 20 16:38:02 2023
Author: Shane, Aiden 
Type: Update 
Category: Cleanroom 
Subject: Cleanrooom cleaning and particle count 
[Aiden, Shane]

cleaning cleanroom and particle count

  • 3:16 pm: started particle count.

    NOTE: we are not within the ISO class 5 standard for any size ranges in zone 3. ~6000 above limit in 0.3 u, ~2000 above in 0.5, ~200 above in 1.0

    • zone 3:
      • 0.3 u: 16,711
      • 0.5 u: 5612
      • 1.0 u: 1039
    • zone 4:
      • 0.3 u: 6817
      • 0.5 u: 2369
      • 1.0 u: 249
  • 3:35 pm: began surface check and wipedown, including softwalls
  • 3:50 pm: started vacuuming the floor
  • 4:00 pm: finished vacuuming the floor
  • 4:01 pm: started mopping the floor
  • 4:06 pm: finished mopping the floor
  • 4:07 pm: started cleaning the buckets
  • 4:08 pm: started mopping with IPA wipes
  • 4:14 pm: finished mopping with IPA wipes
  • 4:15 pm: changed sticky floor mats
  • 4:18 pm: started particle count
    • zone 3:
      • 0.3 u: 23,113
      • 0.5 u: 9686
      • 1.0 u: 1371
    • zone 4:
      • 0.3 u: 7191
      • 0.5 u: 2951
      • 1.0 u: 290
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