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. ----------------------------------------------------------- Morgan,
What really matters is that BOTH methods are effective. One has to decide which to use based on available means. Briefly, oxygen scavengers and necessary enclosures can be done as a one-off without any fancy equipment purchases. Generating or buying nitrogen or other appropriate gas takes up space, and requires some equipment purchases. It might make economical and time sense if you are doing more treatment. At Colonial Williamsburg we use 3 types of pest treatment, all of which work: For non-collections (lumber, sticks, weird craft project or decorating materials) we heat-treat in an oven or even a car in summertime. For collections that fit in our large, residential type chest freezer, we freeze - little waste, very economical For larger collections (furniture or architectural fragments, usually) Marvelseal enclosures and ageless scavenger Our freezer is full more often than not, due to seasonal textile changes in our historic house interpretation. We perform 3-4 ageless treatments each year. It pains me to see the volume of waste from these, which includes a fair amount of plastic, but we cannot justify storing and maintaining the equipment necessary for alternate anoxic treatments. Our leak detector (not necessary, but really nice to verify a seal) allows us to use less ageless than the literature suggests, which is calculated to be approximately 2X the oxygen present in a volume. This accommodates small leaks in the enclosure. We are now comfortable using about 1.5X, and find that the packets are not completely spent when we open a bag after a couple of weeks. Patty From: [email protected] [mailto:[email protected]] On Behalf Of Morgan, Amber Sent: Friday, December 21, 2012 9:32 AM To: [email protected] Subject: [pestlist] anoxic treatments This is a message from the Museumpests List. To post to this list send it as an email to [email protected]<mailto:[email protected]> To unsubscribe please look at the footer of this email. ----------------------------------------------------------- It seems that whenever the topic of anoxia comes up, there are two schools of thought: those who think oxygen scavengers are the best method, and those who think inert gasses are more effective. Does anyone know if there has been a good comparative study? I'm finding a good amount of literature supporting one side or another, but so far nothing that makes a direct comparison of the effectiveness of each method. 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 [email protected]<mailto:[email protected]> To unsubscribe from this list send an email to [email protected]<mailto:[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]<mailto:[email protected]> with this command in the body: set mode digest pestlist Any problems email [email protected]<mailto:[email protected]> or [email protected]<mailto:[email protected]> ---------------------------------------------------------------------- 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]
