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Nitrogen is not totally inert, reacts with some metals that can be used as
pigments.. Fungi acceleration is after opening the chamber, not in the
chamber. More researchs needs to be done in this area, hopefully it will be.
Bill
In a message dated 10/13/2010 9:53:11 A.M. Eastern Daylight
Argon is a by product of collecting nitrogen, no extra cost involved. Yes,
nitrogen is used most often based on cost and easier to contain in a
chamber. Nitrogen does not penetrate as well as argon, look at your periodic
table for weights. Use your FTIR to test argon verses nitrogen on real
Wood should not be frozen, it can crack. You may also lose part of the
painted surface due to expansion and contraction.
In this case anoxic treatment is a better choice, less shock.
Bill
ACI
In a message dated 6/9/2010 1:33:22 P.M. Eastern Daylight Time,
aa...@mindspring.com writes:
With training a stethoscope can be used. You need to discern background
noise from insect sounds. Most of us have lazy ears.
Freezing and warming cycles are not good for wood Art, specially mixed
media. Mixed media has different contraction rates, does not respond well to
dramatic
Anoxic treatment on a building is very possible. Grain silos were purged
with nitrogen during the Second World War preventing food lose to rodent and
insect populations.
Textiles from 1890's have changed color under Vikane, off white to a
yellow white from the acids. Most companies will tell
Is there frass ( powder or grains) , holes, soft spots or rot in any of
the wooden objects? Any prior infestation? Have you ever found wings in the
general area? Do you have sticky traps to monitor any activity?
It is easier to associate damage to a particular insect than to identify an
You would be better off with an anoxic system that allows you to make any
chamber size. The systems I make allow you treat one book or 100,000 books
at one time. The system is portable and reads below 20 ppm for mold issues.
I have been doing anoxic treatment for museums, institutions and
Megan,
The branches will need to be treated no matter what country they
come from. Freezing does not always work. I re treated with anoxic treatment
many branch items that were frozen to prevent infestation.
Synthetic branches you may want to consider treatment as well
If you had an infestation in the past you may not have contained it.
Carpet beetle will hide under base boards, flooring and in walls where dust
accumulates. The new carpeting and drapes should have been monitored before
installation. Many new items come infested from manufacture,
_http://www.epa.gov/oppsrrd1/REDs/factsheets/permethrin_fs.htm_
(http://www.epa.gov/oppsrrd1/REDs/factsheets/permethrin_fs.htm)A good idea
to read
before use.
Bill
In a message dated 7/9/2009 9:48:08 P.M. Eastern Daylight Time,
forr...@saintaubinbce.com writes:
Lisa, there are
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