Re: [pestlist] anoxic treatment update and more questions
This is a message from the Museumpests.net List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe look at the footer of this email. --- Hi Nicole As Pascal mentioned, the temperature is going to be critical in ensuring that you achieve 100% mortality. When testing powderpost beetles Dr Mark Gilberg found that it took up to 12 days to kill all stages at 30C and 70RH. You’re using a lower RH than in that test which should reduce the time, but it takes longer to kill insects at lower temperatures (i.e. up to 6 weeks at 20C). If the temperature where you are treating the objects is low you will need to increase the temp. Oxygen scavengers take a number of days to reduce the oxygen level so you need to allow for this when thinking about treatment time as well. Regarding the Anobium life cycle, the adults emerge in late spring/ early summer. This means that there would be minimal risk of cross-infestation as the borers will be in the larval stage at this time (unless they are from the southern hemisphere, e.g. Australia, where the beetles are emerging now). Best wishes Alex On Wed, 3 Jan 2018 at 5:44 am, Pascal Querner <pascal.quer...@gmx.at> wrote: > This is a message from the Museumpests.net List. > To post to this list send it as an email to pestlist@museumpests.net > To unsubscribe look at the footer of this email. > --- > Hi Nicole, > > what temperature do you have for your treatment and what pest (in wood or > others?). if you have about 25 C and the anoxia systhem is working, you > should have 0,0 % Oxygen and 3 weeks should be enough. For wood boring > pests it should be fine also, but they one of are the hardest to kill with > anoxia. > > All the best from Europe, > > Pascal > > *Gesendet:* Dienstag, 02. Januar 2018 um 18:10 Uhr > *Von:* "Nicole Grabow" <nicolegra...@gmail.com> > *An:* pestlist@museumpests.net, "AIC Objects Specialty Group Discussion" < > os...@cool.conservation-us.org> > *Betreff:* [pestlist] anoxic treatment update and more questions > This is a message from the Museumpests.net List. > To post to this list send it as an email to pestlist@museumpests.net > To unsubscribe look at the footer of this email. > --- > Hello lists (crossposting with OSG and Pests), > Thank you all for your help and advice in designing an anoxic system. I > was able to order the RP-K oxygen scavengers direct from Mitsubishi and > since there were none in stock in all of North America they shipped them > all the way from Tokyo. My RH is holding at 45%, which is good. Also, a > very generous colleague has lent us an oxygen detecting system. > > I am writing now to ask if anyone - particularly perhaps the bug experts > on the Pest list - can tell me about the life cycle of the Anobiidae > family, and if there is any wiggle room on the 21-day recommendation for > anoxic treatment. The shipment from Japan set us back a few days and we > will hit the 21-day mark exactly one day after the show opens. What kind of > risk are we looking at if we choose to take them out after 20 days? > > Thanks, > Nicole > > > Nicole Grabow > > Senior Objects Conservator and Preservation Conservator > > Midwest Art Conservation Center > > 2400 Third Avenue South > <https://maps.google.com/?q=2400+Third+Avenue+South%0D+%0D+Minneapolis,+MN+55404=gmail=g> > > <https://maps.google.com/?q=2400+Third+Avenue+South%0D+%0D+Minneapolis,+MN+55404=gmail=g> > > Minneapolis, MN 55404 > <https://maps.google.com/?q=2400+Third+Avenue+South%0D+%0D+Minneapolis,+MN+55404=gmail=g> > > (612)870-3129 > > ngra...@preserveart.org > > > > *The Midwest Art Conservation Center is a non-profit regional center for > the preservation and conservation of art and artifacts providing treatment, > education, and training for museums, historical societies, libraries, other > cultural institutions as well as public and private clients.* > > > > - > To unsubscribe from this list send an email to > imail...@museumpests.net and in the body put: > "unsubscribe pestlist" > Any problems email l...@zaks.com > > > > > - > To unsubscribe from this list send an email to > imail...@museumpests.net and in the body put: > "unsubscribe pestlist" > Any problems email l...@zaks.com > > > > -- *Alex Roach* *Director* Modified Atmospheres *M:* 0414 663 472 ABN: 66 164 577 557 - To unsubscribe from this list send an email to imail...@museumpests.net and in the body put: "unsubscribe pestlist" OR just send an email to l...@zaks.com and ask to be removed. Any problems email l...@zaks.com
Aw: [pestlist] anoxic treatment update and more questions
This is a message from the Museumpests.net List.To post to this list send it as an email to pestlist@museumpests.netTo unsubscribe look at the footer of this email.--- Hi Nicole, what temperature do you have for your treatment and what pest (in wood or others?). if you have about 25 C and the anoxia systhem is working, you should have 0,0 % Oxygen and 3 weeks should be enough. For wood boring pests it should be fine also, but they one of are the hardest to kill with anoxia. All the best from Europe, Pascal Gesendet: Dienstag, 02. Januar 2018 um 18:10 Uhr Von: "Nicole Grabow" <nicolegra...@gmail.com> An: pestlist@museumpests.net, "AIC Objects Specialty Group Discussion" <os...@cool.conservation-us.org> Betreff: [pestlist] anoxic treatment update and more questions This is a message from the Museumpests.net List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe look at the footer of this email. --- Hello lists (crossposting with OSG and Pests), Thank you all for your help and advice in designing an anoxic system. I was able to order the RP-K oxygen scavengers direct from Mitsubishi and since there were none in stock in all of North America they shipped them all the way from Tokyo. My RH is holding at 45%, which is good. Also, a very generous colleague has lent us an oxygen detecting system. I am writing now to ask if anyone - particularly perhaps the bug experts on the Pest list - can tell me about the life cycle of the Anobiidae family, and if there is any wiggle room on the 21-day recommendation for anoxic treatment. The shipment from Japan set us back a few days and we will hit the 21-day mark exactly one day after the show opens. What kind of risk are we looking at if we choose to take them out after 20 days? Thanks, Nicole Nicole Grabow Senior Objects Conservator and Preservation Conservator Midwest Art Conservation Center 2400 Third Avenue South Minneapolis, MN 55404 (612)870-3129 ngra...@preserveart.org The Midwest Art Conservation Center is a non-profit regional center for the preservation and conservation of art and artifacts providing treatment, education, and training for museums, historical societies, libraries, other cultural institutions as well as public and private clients. - To unsubscribe from this list send an email to imail...@museumpests.net and in the body put: "unsubscribe pestlist" Any problems email l...@zaks.com -To unsubscribe from this list send an email toimail...@museumpests.net and in the body put:"unsubscribe pestlist"Any problems email l...@zaks.com
RE: [pestlist] Anoxic treatment
This is a message from the Museumpests.net List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe look at the footer of this email. --- We currently use anoxia treatments on an as-needed basis using Mavelseal bags we make to the size needed, and Ageless ZPT-2000. We have needed to treat less than 10 objects in the last year, most with multiple materials, including feathers, and some archaeological wood. We no longer include indicators- they are unreliable- but with the small size of most of our bags/anoxia chambers it’s possible to observe the 20% reduction in volume within the first 24 hours. I have used a Hobo inside the bag to record changes in RH as well. The RH will drop by a small percentage but NOT to zero! I have used acid free tissue paper as an RH buffer as well as for surface protection, and have used silica gel for larger volume or more vulnerable objects. This is a reliable if limited solution- it is slow and it cannot be monitored exactly, but is effective and cost effective for our needs.. We are considering a freezer and have access to a tent-system if a larger scale treatment is ever needed. Casey From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On Behalf Of Nicole Grabow Sent: Tuesday, November 28, 2017 2:04 PM To: pestlist@museumpests.net Subject: [pestlist] Anoxic treatment This is a message from the Museumpests.net List. To post to this list send it as an email to pestlist@museumpests.net<mailto:pestlist@museumpests.net> To unsubscribe look at the footer of this email. --- I have a couple of questions about anoxic pest treatments using oxygen scavengers. I more commonly use low-temperature treatment and I'm more familiar with that technique, but I understand the anoxia is recommended for laminate structures and painted wood. My first question is about oxygen indicators. I know that the Ageless indicators are prone to failure, but more sophisticated instrumentation is expensive. I have received quotes for both the MOCON OpTech Model P and the PreSens Fibox 4, but at over $5K they are out of our budget for this fiscal year. Does anyone have a less expensive solution, or, alternately, equipment that we could rent for a singe project? My second question has do to with the basic premise that anoxia is safer than freezing, and the basis of my concern is relative humidity. With anoxia induced by oxygen scavengers (which is the system I have available to me) the RH ultimately goes to 0% - or else the scavengers aren’t working. 21 days of this does not seem safer than 72 hours of freezing - what am I missing? Nicole Grabow - To unsubscribe from this list send an email to imail...@museumpests.net<mailto:imail...@museumpests.net> and in the body put: "unsubscribe pestlist" Any problems email l...@zaks.com<mailto:l...@zaks.com> - To unsubscribe from this list send an email to imail...@museumpests.net and in the body put: "unsubscribe pestlist" OR just send an email to l...@zaks.com and ask to be removed. Any problems email l...@zaks.com
[pestlist] Anoxic treatment
This is a message from the Museumpests.net List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe look at the footer of this email. --- I have a couple of questions about anoxic pest treatments using oxygen scavengers. I more commonly use low-temperature treatment and I'm more familiar with that technique, but I understand the anoxia is recommended for laminate structures and painted wood. My first question is about oxygen indicators. I know that the Ageless indicators are prone to failure, but more sophisticated instrumentation is expensive. I have received quotes for both the MOCON OpTech Model P and the PreSens Fibox 4, but at over $5K they are out of our budget for this fiscal year. Does anyone have a less expensive solution, or, alternately, equipment that we could rent for a singe project? My second question has do to with the basic premise that anoxia is safer than freezing, and the basis of my concern is relative humidity. With anoxia induced by oxygen scavengers (which is the system I have available to me) the RH ultimately goes to 0% - or else the scavengers aren’t working. 21 days of this does not seem safer than 72 hours of freezing - what am I missing? Nicole Grabow - To unsubscribe from this list send an email to imail...@museumpests.net and in the body put: "unsubscribe pestlist" OR just send an email to l...@zaks.com and ask to be removed. Any problems email l...@zaks.com
Re: [pestlist] Anoxic treatment (on behalf of Stephan Schafer)
This is a message from the Museumpests List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe please look at the footer of this email. --- Return Receipt Your Re: [pestlist] Anoxic treatment (on behalf of Stephan document: Schafer) wascindy_no...@nps.gov received by: at:03/29/2012 08:44:32 AM MDT -- To send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to pestlist@museumpests.net 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 imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com
RE: [pestlist] Anoxic treatment
This is a message from the Museumpests List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe please look at the footer of this email. --- Dear Sir, To start with you should take a look at the resources page of the Museum Pest web site (http://www.museumpests.net/ ). That will provide you with a great deal of information. The second site I recommend you take a look at is the Canadian Conservation Institute's Pest article http://www.cci-icc.gc.ca/caringfor-prendresoindes/articles/10agents/chap06-eng.aspx. Good luck Gretchen Anderson Conservator Carnegie Museum of Natural History 4400 Forbes Ave Pittsburgh PA 15202 anders...@carnegiemnh.org From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of ??? Sent: Tuesday, March 27, 2012 8:50 PM To: pestlist@museumpests.net Subject: [pestlist] Anoxic treatment Dear all I am J.S. OH of The National Folk Museu of Korea and reponsible for IPM of The National Folk Museum of Korea. Now I am investigating the anoxic treatment of museums around the world. Does anyone have any information of anoxic treatment(nitrogen or argon, rigid wall chamber, bubble etc) of the museums around the world. Sincerely yours J.S. OH Conservation Laboratory The National Folk Museum of Korea 110-820 1-1 Seojong-Ro Jongro-Gu Seoul Republic of Korea Tel 82 2 3704 3276 Fax 82 2 3704 3273 Mail kcomm...@yahoo.co.krmailto:kcomm...@yahoo.co.kr -- To send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to pestlist@museumpests.net 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 imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com The information contained in this message and/or attachments is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any system and destroy any copies. Any views expressed in this message are those of the individual sender. -- To send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to pestlist@museumpests.net 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 imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com