NASA has done quite a lot of research on the residues left by gloves in cleanroom situations on critical surfaces . Below is a summary of findings in a fairly recent study: Contamination of Critical Surfaces from NVR Glove Residues Via Dry Handling and Solvent Cleaning by Marjorie F. Sovinski , April 2004.
"Summary Analysis of the results found that for dry handling, the polyethylene gloves, the nitrile gloves, and the latex gloves performed equally well. Any of these gloves would be a good first choice, depending on the situation and application. Nitrile gloves are also a suitable substitute for latex gloves if latex sensitivity is an issue. For solvent contact, polyethylene gloves were found to have the least amount of extractable residue in all solvents, and they also have a minimal lot-to-lot variation. The nitrile gloves were second only to the polyethylene gloves in the isopropyl alcohol and ethyl alcohol. They are a suitable replacement for the latex gloves in any of the solvents. The latex gloves had higher NVR amounts compared to the nitrile gloves, but they may be used if required. If the latex gloves are used, any contact with acetone should be avoided. The polyurethane gloves may be used on a case-by-case basis, as the set that was tested in isopropyl alcohol was found to have an NVR level comparable to that found with nitrile gloves. Vinyl gloves should never be used, and should especially be avoided during solvent cleaning. " Linda S. Roundhill Art and Antiquities Conservation, LLC Woodinville WA USA www. conservation-arts.com 425-481-0720 Original message: Message: 12 Date: Tue, 23 Jan 2018 14:10:15 +0000 From: Diehl Johanna <[email protected]> To: "[email protected]" <[email protected]> Subject: [Consdistlist] nitrile gloves Message-ID: <[email protected]> Content-Type: text/plain; charset="iso-8859-1" Dear list-members, we recently have done some oddy tests of different nitrile gloves. All results were very similar we do see some changes on all lead and cupper coupons. That means that the glove materials emit tarnishing pollutants under accelerated conditions. Does it also mean that in direct contact the gloves transfer tarnishing residue to object surfaces? Does anybody know alternatives to nitrile gloves? Has anybody done research on this topic? Thanks Johanna Kunsthistorisches Museum Wien Mag. Johanna Diehl Restauratorin Kunstkammer & Schatzkammer ****** Unsubscribe by sending a message to [email protected] Searchable archives: http://cool.conservation-us.org/byform/mailing-lists/cdl/
