Hello!
Not entirely sure what the answer is, but I think using a 70% Isopropyl or ethanol solution with DI water might be a good place to start when looking for the next best fit for your institution. I recommend sourcing your isopropyl from a lab and not a drug store. The drug store kind comes already diluted, but it isn't always clearly marked on what its diluted with. It's probably fine in a pinch, but you want to have control over what's in your solution.
As you already know, always test on a discreet spot. On wooden floors I'd use sparingly, and then dry immediately and thoroughly, don't let it sit.
Hope this helps kick start your search!
Cheers,
Annabelle
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Annabelle Nolasco
Conservation Technician
Toledo Museum of Art
Toledo
United States
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Original Message:
Sent: 05-21-2025 14:50
From: Olivia Bascle
Subject: Biohazard Cleanup in Historic Sites
Hello, I am wondering if there are any historic sites out there that have a cleanup protocol for biohazard spills (vomit, blood, etc.) in your public spaces on historic or sensitive material. We have been testing various products that have been registered with the EPA to be affective against bloodborne pathogens, list S, but also do minimal harm to historic wooden or stone floors, carpets, etc. Our most promising product has been discontinued by the manufacturer so we are looking for some alternative products to bleach.
Thank you in advance for any thoughts on this topic or even sharing your experiences, I know it is thrilling!
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Olivia Bascle
Manager of Preventive Conservation, Historic Area
Colonial Williamsburg Foundation
Williamsburg
United States
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