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| Richardson Lab Experimental Log |
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Message ID: 133
Entry time: Tue Jun 27 12:09:37 2023
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| Author: |
Shane |
| Type: |
Update |
| Category: |
Cleanroom |
| Subject: |
cleanroom 5 zone particle count measurement |
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| Attached is 5 zone measurement for cleanroom particulate count. Zone 3 (in front of vacuum chamber) higher than usual, likely due to recent vac work. Slightly above ISO class 5 standard in 1.0 micron range, measuring 997 particles/cubic meter while ISO standard is 832 particles/cubic meter in this range.
Zero count test on particle counter performed prior to today's measurement. |
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