[labnetwork] High footfall in the cleanroom

[Venkatachalam P]

Hi,

In trying to find if any standards regrading maximum personal allowed in a cleanroom space, ISO 14644 does not restrict num of personal in the cleanroom. But, does mention "Care should be taken to identify and control all factors that have an influence on the required cleanroom cleanliness classification - personnel activity".

I could not find anything recent on Semiconductor cleanrooms (... Yield = Profits), but further looking into Pharma cleanrooms, FDA doesn't restrict no of people, but certain companies do \ref [1]. I also stumbled upon these answers on limiting people in cleanroom based on amount of contamination caused by the personal and how it is calculated \ref [2] [3].

[1] Pharmaceutical Cleanroom Classification using ISO 14644-1 and the EU GGMP Annex 1 Part 2: Practical (ejpps.online)<https://www.ejpps.online/post/vol24-4-pharmaceutical-cleanroom-classification-using-iso-14644-1-and-the-eu-ggmp>
[2] Predicted Contamination Levels in Cleanrooms When Cleanroom-Dressed People Are the Contamination Source (pharmtech.com)<https://www.pharmtech.com/view/predicted-contamination-levels-cleanrooms-when-cleanroom-dressed-people-are-contamination-source>
[3]Rationale Number of Personnel in Clean Rooms CM 20131023 | PDF | Chemistry | Nature (scribd.com)<https://www.scribd.com/document/328866303/Rationale-Number-of-Personnel-in-Clean-Rooms-CM-20131023-1>



Best regards,

Venkatachalam P

Project assistant - PRL

CeNSE, NNFC

Indian Institute of science

Bangalore, India.

+91 8951270047



________________________________
From: labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of Philipp Altpeter <philipp.altpeter at lmu.de>
Sent: Saturday, December 23, 2023 7:59 PM
To: labnetwork at mtl.mit.edu <labnetwork at mtl.mit.edu>
Subject: Re: [labnetwork] High footfall in the cleanroom

External Email


Dear Savitha,


During covid we restricted the number of people working in the cleanroom simultaneously by implementing a booking calendar (in form of a doodle poll or something similar) along with the calendars for the equipment. As a user, you had to book a cleanroom slot first, then the required equipment. If you include a buffer of 10%, it can work efficiently.


Hope it helps...


Philipp





Am 22.12.2023 um 09:57 schrieb Savitha P:

Hi!

We are experiencing a high number of people in our cleanroom, with 50-70 users at a time against a maximum capacity of 50. I would appreciate it if you could share strategies used in your facilities to reduce the number of people in the cleanroom. Do you have any restrictions on students during the day or any incentives for working after office hours, for both startups and industry?

Thanks,
Savitha

Dr. Savitha P
Chief Operating Officer
National Nanofabrication Centre
Centre for Nanoscience and Engineering
Indian Institute of Science
Bangalore - 560012
India.
Ph. +91 80 2293 3319
www.cense.iisc.ac.in<http://www.cense.iisc.ac.in>



_______________________________________________
labnetwork mailing list
labnetwork at mtl.mit.edu<mailto:labnetwork at mtl.mit.edu>
https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork




-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mtl.mit.edu/pipermail/labnetwork/attachments/20231227/ee185f60/attachment.html>