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Hi Annie, The freezer will work fine with that defrost cycle to kill insects. Your objects will not re-warm as fast as the cycle, it will just stall cooling down of the outer packaging and surface a bit depending on the duration of the cycle, so it will be quite effective. It is better to have an efficient and 'healthy' freezer with little load of frost inside the system in case of power outage, which is of course one of the reasons the plastic bag is placed around the objects for the treatment. Sincerely, Tom Strang PhD Senior Conservation Scientist | Scientifique principal en conservation Canadian Conservation Institute | Institut canadien de conservation Canadian Heritage | Patrimoine canadien 1030 Innes Rd. Ottawa, Ontario, Canada, K1A 0M5 [email protected] Téléphone | Telephone 613-998-3721 (extension 239) Télécopieur | Facsimile 613-998-4721 Téléimprimeur (sans frais) 1-888-997-3123 | Teletypewriter (toll-free) 1-888-997-3123 From: "Peterson, Elizabeth A" <[email protected]> To: "[email protected]" <[email protected]> Date: 05/09/2013 05:16 PM Subject: [pestlist] ID & freezer question Sent by: [email protected] This is a message from the Museumpests List. To post to this list send it as an email to [email protected] To unsubscribe please look at the footer of this email. ----------------------------------------------------------- Hello pest list, I have attached four images: three of which I believe are different phases of the odd beetle, but am looking for some confirmation of that. I had thought that all the larvae I was finding were carpet beetle larvae, but now am rethinking that as I find what I think are odd beetle adults. But it seems as though they both raise similar concerns in relation to library collections. I don’t have a clue of what the thing pictured in the image titled jonesh3 is, can anyone ID it? I’m also putting a query out there about a freezer. I’d like to get a freezer for our institution that will be used for incoming gifts and possibly as a mechanism for treating a large collection in the process of moving it to a new space. I’ve found a mini walk-in room that’s in our budget, but it automatically defrosts, raising the air temperature to about -15C every 6 hours. The company has told me that items stored in it only warm up about 2 or 3 degrees during the defrost (from -20C) but this still makes me concerned about its pest killing abilities. Am I right to be concerned about that, or will it be effective in treating collections materials for pests? Thanks, Annie Peterson Annie Peterson Preservation Librarian Howard-Tilton Memorial Library Tulane University 504 865 5641 ---------------------------------------------------------------------- To send an email to the list, send your msg to [email protected] To unsubscribe from this list send an email to [email protected] and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. To change to the DIGEST mode send an email to [email protected] with this command in the body: set mode digest pestlist Any problems email [email protected] or [email protected] [attachment "odd.jpg" deleted by Tom Strang/HullOttawa/PCH/CA] [attachment "odd1.jpg" deleted by Tom Strang/HullOttawa/PCH/CA] [attachment "odd2.jpg" deleted by Tom Strang/HullOttawa/PCH/CA] [attachment "jonesh3.jpg" deleted by Tom Strang/HullOttawa/PCH/CA] ---------------------------------------------------------------------- To send an email to the list, send your msg to [email protected] To unsubscribe from this list send an email to [email protected] and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. To change to the DIGEST mode send an email to [email protected] with this command in the body: set mode digest pestlist Any problems email [email protected] or [email protected]
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