In response to a posting regarding blood on a medical instrument I wrote: >>I was not aware that training in exhibit design now includes training in the >>conservation of metals. Just what are the effects of "standard >>disinfectants" on saw blades, anyway? How can we be certain that the >>accretion on the saw is blood? Was it tested? > >>Gutenkauf Jack Thompson responded >"Ick" is not an appropritate response. If that seems hard, tough; move on >to another speciality. >Tools which demonstrate use are more important than tools which come out of >the bin in a hardware store. >The effect of "standard disinfectants" is to remove all traces of use and >that is not good; if there is a question about whether or not an accretion >is dried blood, there are tests for that which are very positive. OJ >notwithstanding. Absolutely, and clearly I knew all that, but the point I very badly made is that we must ask questions, lots of questions, of our objects and ourselves, before we "treat" any object. How can we complain that we're not treated as professionals if we fail to act responsibly with regard to our objects? Responsible treatment of objects includes understanding that evidence of wear and use provide important clues to the questions "Who used this and Why?" Responsible treatment also includes asking the proper questions of the proper people and it does not include well meaning, offhand, suggestions from mars. I am pleased that the original poster of the blood on the medical instrument question saught advice before she treated the object. I am a bit concerned that she (a conservation professional) wanted to remove an accretion that she seemed to assume was blood. I asked myself several basic questions: How did she know the stuff was blood; why did she want it removed; was she afraid of the material; was the material causing harm to the artifact; how can the material be documented before it is destroyed? How can we understand appropriate methods of interpreting objects if we fail to understand the objects in the first place? Gutenkauf ______________________________________________________________________ Diane Gutenkauf, Curator Elmhurst Historical Museum 120 E. Park Avenue Elmhurst, IL 60126 USA Voice: +(630) 833-1457 Fax: +(630) 833-1326 Email: [log in to unmask] (Internet) 74547,377 (CompuServe) My opinions (strong as they are) are my own and do not reflect those of any institution with which I am affiliated