[Nhcoll-l] Temporary storage of herbaria sheets in sealed plastic bags

Tue Apr 28 14:20:05 EDT 2015

2020, five years from now, is a long time to subject  inaccessibly stored
materials that can be easily entered  by pests or humidity (ESP. BEFORE THE
BAGS ARE SEALED!).

Seems like a pest-inhospitable vacuum and/or cold storage situation would
be a useful safeguard to add for such a long time in unfamiliar  and
unexperienced (for your collection at your site's) storage conditions.

Peter

On Tue, Apr 28, 2015 at 10:58 AM, Anita Cholewa <chole001 at umn.edu> wrote:

> When we were installing a compactorized system in part of our herbarium,
> we had to temporarily store some specimens and used bags and boxes (bags
> inside boxes).  Since the specimens were already dried, it worked very
> well, limited handling, and controlled pests.  No vacuum was necessary.
>
> Anita
>
> __________
> Anita F. Cholewa, Ph.D.
> Curator and Collections Manager
>      of the UofM Herbarium (MIN)
> Bell Museum of Natural History
> College of Food, Agricultural, and
>      Natural Resource Sciences
> University of Minnesota
> 1445 Gortner Ave
> ST PAUL MN 55108-1095
>
> campus mail code: 6022
>
> On Tue, Apr 28, 2015 at 4:04 AM, Majken Them Tøttrup <mtottrup at snm.ku.dk>
> wrote:
>
>>  Dear all
>>
>> We are in the process of moving our herbaria into temporary storage until
>> our new museum is ready in 2020.
>>
>> Some of the herbaria are in build-in cabinets, and therefore need new
>> housing, but since we do not know exactly how the new collection facilities
>> will end up, we are NOT interested in purchasing new cabinets at this
>> moment.
>>
>> *The aim is to keep all the collections accessible at all times in the
>> coming years (except when doing the actual move **J**)*
>>
>> The temporary storage is actually quite nice and our staff will be
>> working there permanently. We will be able to control the relative
>> humidity, but we do not have a chance of securing the facility in regard to
>> pests.
>>
>>
>>
>> Therefore we are considering the following set-up;
>>
>> ·         To pack and seal the material from the different shelves
>> individually in plastic, maybe with a light vacuum in order to minimize the
>> mechanical tear.
>>
>> ·         Pack all the plastic sealed units into separate stackable
>> cardboard boxes, which will be meta-registered and stacked on pallets. The
>> registration of placement of individual pallets together with the
>> meta-registration of individual boxes, should enable us to find the desired
>> material at any time.
>>
>>
>>
>> The advantages – as we see them;
>>
>> ·         The material is secured in regard to pests
>>
>> ·         The potential mechanical damage is reduced as we will only
>> have to handle the herbaria sheets 2 times instead of 4 times
>>
>> ·         Probably 80-90% of the material will not be touch in the
>> coming 5 years, so it will be all packed and ready to go into the new
>> museum in five years’ time.
>>
>>  Does anybody have experience in regard to sealing herbaria sheets in
>> plastic – and what about the vacuum?
>>
>> Is there a risk of creating microclimates – or any other risks you can
>> think of?
>>
>> Any other/better ideas?
>>
>>
>>
>> Thanks in advance
>>
>> Regards, Majken
>>
>>
>>
>> Majken Them Tøttrup
>>
>> Collections Coordinator
>>
>> Natural History Museum of Denmark
>>
>> University of Copenhagen
>>
>> Universitetsparken 15
>>
>> DK-2100 Copenhagen
>>
>> Denmark
>>
>>
>>
>> DIR +45 40498935
>>
>> MOB +45 40498935
>>
>> mtottrup at snm.ku.dk
>>
>>
>>
>>
>>
>> [image: KU (FA og tværgående)_bomaerke_UK]
>>
>>
>>
>>
>>
>>
>>
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