[Nhcoll-l] conservation collections

[Dirk Neumann]

Dear Ann,

our collection is completely subsurface, too. During construction, 
groundwater issues became evident as Lex described, thus the complete 
building sits in a big concrete trough that shelters collections against 
groundwater and groundwater pressure.

The other thing is that the deepest point is inside the building. It is 
constructed in a way that all surface water (mainly rain) runs together 
inside the building in a big pump sump. All window or door openings are 
either well above ground level or protected with canals to avoid 
flooding during heavy rain events (Munich is notorious for such 
incidents - but luckily so far no problems).

Other issues with malfunctioning climate control systems can be 
condensation issues on cold floors in the 2nd ground level storage area 
when too moist air is delivered into the storage area. Shutting air 
supplies off in this case is a proper emergency measure.

Apart from this, the advantages dominate (slow fluctuations, lower costs 
for climate control systems, etc.).

Hope this helps
Dirk

Am 23.10.2017 um 17:30 schrieb Alexandra Snyder:
>
> Ann,
>
>
> Although my own experience has been with facilities that are partially 
> or fully underground, used for collections of fishes  conserved in 
> jars and tanks, there are some conditions that I have noted over the 
> years.
>
>
> First, over the past years, there have been improvements in 
> construction methods for such facilities  and if the construction 
> company is doing their job, they will be using moisture barriers and 
> materials that keep walls and floors dry.  Secondly, such facilities 
> are great for controlling temperature and UV exposure.  Controlling 
> humidity depends on where you live and the facility system in place to 
> control RH and other environmental factors.
>
>
> However, these subterranean rooms are closer to groundwater tables and 
> the building's external water pipes that may be buried nearby for 
> landscaping.  Both can add to problems with seeping water at floor and 
> wall levels.  If the upper floors of the museum experience a 
> catastrophic water or fluid spill, the lower levels will also 
> experience the effects.  At three different facilities, where I have 
> managed collections of fishes in jars, I have maintained those 
> collections in subterranean rooms of the museum, i.e., below the DRY 
> collections, for the specific purpose of avoiding damage to dry 
> collection in the event of major spill from fluid preserved collections.
>
>
> Lex
>
>
> *************************************
> Alexandra M Snyder, Collections Manager-Fishes
> Museum of Southwestern Biology MSC03-2020
> University of New Mexico Albuquerque NM 87131
> PH./FAX 505.277.6005 amsnyder at unm.edu
>
> PHYSICAL ADDRESS FOR FEDEX/UPS
> Bldg.83 Â Room 204
> 302 Yale Blvd NE
>
>
>
>
>
> ------------------------------------------------------------------------
> *From:* nhcoll-l-bounces at mailman.yale.edu 
> <nhcoll-l-bounces at mailman.yale.edu> on behalf of Ann Bogaerts 
> <ann.bogaerts at plantentuinmeise.be>
> *Sent:* Monday, October 23, 2017 7:26 AM
> *To:* nhcoll-l at mailman.yale.edu
> *Subject:* [Nhcoll-l] conservation collections
> Dear all,
>
> We wonder if there are institutes who preserve there collections 
> underground? If so what are the difficulties and what should we bear 
> in mind when building underground floors to keep herbarium collections.
>
> We are a bit hesitating because of humidity problems and problems of 
> climate control.
>
> Do you have any recommendations?
>
> Have a nice day,
>
> Ann
>
>
>
> -- 
> Ann Bogaerts
>
> Scientific manager Herbarium BR
>
> Botanic Garden Meise
> Nieuwelaan 38
> BE-1860 Meise
> ++32 2 260 09 57
> *
> *
> *Gelieve voortaan mijn nieuw e-mailadres te gebruiken: 
> *ann.bogaerts at plantentuinmeise.be 
> <mailto:ann.bogaerts at plantentuinmeise.be>
>
>
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-- 
Dirk Neumann

Tel: 089 / 8107-111
Fax: 089 / 8107-300
email: Dirk.Neumann(a)zsm.mwn.de

Postanschrift:

Staatliche Naturwissenschaftliche Sammlungen Bayerns
Zoologische Staatssammlung München
Dirk Neumann, Sektion Ichthyologie / DNA-Storage
Münchhausenstr. 21
81247 München

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---------

Dirk Neumann

Tel: +49-89-8107-111
Fax: +49-89-8107-300
email: Dirk.Neumann(a)zsm.mwn.de

postal address:

Bavarian Natural History Collections
The Bavarian State Collection of Zoology
Dirk Neumann, Section Ichthyology / DNA-Storage
Muenchhausenstr. 21
81247 Munich (Germany)

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