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<p class="MsoNormal">Hi Katharine,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here at Purdue at the Birck Nanotechnology Center, our required “solvent” PPE is both chemical splash goggles (ANSI Z87+D3,
<a href="https://automation.honeywell.com/gb/en/products/personal-protective-equipment/eye-protection/safety-goggles/uvex-stealth-retail">
e.g.</a>) and double gloving via latex gloves (<a href="https://www.ansell.com/us/en/products/accutech-91-225">Accutech 91-225</a>, are long enough to cover the cleanroom gown cuffs) on top of their cleanroom nitrile gloves (along with the cleanroom suit and
face mask/veil).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The way we see it is: <o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">The double gloving is necessary, because you don’t want users to get chemical residue on their gloves to transfer around to other surfaces in the cleanroom, or onto their phone and
then face.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">The chemical gloves need to be long enough to cover the cuffs so there’s not an accidental gap to get chemicals directly on their skin.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">The splash goggles are necessary because, while all the wet chemistry is done in a fume hood and there’s a sash, sometimes users drop things unexpectedly and that may happen when they’re
trying to get a closer look at what they’re doing.<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We use regular solvents at our hoods (toluene, acetone, IPA), but also nastier things: HMDS, NMP, chlorobenzene, 2.38% TMAH developer, etc. We try to impress upon the users that even if they’re only working with something that isn’t that
hazardous (e.g. IPA), someone else may be working with something much more so.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="background:white"><span style="color:black;border:none windowtext 1.0pt;padding:0in">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black;border:none windowtext 1.0pt;padding:0in">Justin<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black;border:none windowtext 1.0pt;padding:0in">Justin C. Wirth, PhD </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black;border:none windowtext 1.0pt;padding:0in">Senior Research Engineer – EBL Processes & Nanofab Process Integration </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black;border:none windowtext 1.0pt;padding:0in">Birck Nanotechnology Center | Room 2287A<br>
765.494.8203 | </span><span style="color:black"><a href="mailto:jcwirth@purdue.edu"><span style="color:#0563C1;border:none windowtext 1.0pt;padding:0in">jcwirth@purdue.edu</span></a><span style="border:none windowtext 1.0pt;padding:0in"> </span><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black"><a href="https://purdue.atlassian.net/wiki/spaces/BNCWiki"><span style="color:#0563C1;border:none windowtext 1.0pt;padding:0in">BNCWiki</span></a> |
<a href="https://purdue.ilabsolutions.com/"><span style="color:#0563C1">Purdue iLab</span></a> |
<a href="https://outlook.office.com/bookwithme/user/5ad94572a9c04a4e8aa9159479128868@purdue.edu?anonymous&ep=plink">
<span style="color:#0563C1">Book time on my calendar</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> <b>
On Behalf Of </b>Katharine Beach<br>
<b>Sent:</b> Tuesday, August 11, 2026 8:29 AM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Solvent Bench PPE<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<span style="color:black">You don't often get email from <a href="mailto:beach@umich.edu">
beach@umich.edu</a>. <a href="https://aka.ms/LearnAboutSenderIdentification">Learn why this is important</a>
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">----
<b>External Email</b>: Use caution with attachments, links, or sharing data ----<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Greetings, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">At the LNF we are evaluating our Solvent Bench PPE requirements. I've been tasked with comparing our current PPE requirements with that of our peers'. If you would be so kind as to share links to this information, or just your requirements that
would be greatly appreciated.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Our current requirements are to wear your safety glasses, these should alway be on in the Cleanroom, and a pair of polychloroprene gloves in addition to the base nitrile gloves.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks you,<o:p></o:p></p>
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<p class="MsoNormal">Katharine Beach<o:p></o:p></p>
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<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span class="gmailsignatureprefix">-- </span><o:p></o:p></p>
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<p style="margin:.75pt;line-height:12.75pt"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Katharine Beach<o:p></o:p></span></b></p>
<p style="margin:.75pt;line-height:13.5pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888">Lead Research Engineer<o:p></o:p></span></p>
<p style="margin:.75pt;line-height:13.5pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888">Lurie Nanofabrication Facility<o:p></o:p></span></p>
<p style="margin:.75pt;line-height:13.5pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888">University of Michigan<o:p></o:p></span></p>
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