[Nhcoll-l] Temporary ventilation of alcohol storage

Thu Aug 12 04:21:02 EDT 2021

Am 12.08.2021 um 09:50 schrieb Dirk Neumann:
> Hi Vanessa,
>
> if the storage room is suited to stabilise temperature and relative 
> humidity, slow fluctuations are acceptable. We currently have a 
> similar situation here with renovations of our HVAC system, however, 
> because we lost the ambient air supply that was delivered through the 
> HVAC system into our storage spaces, we had major temperature issues 
> in the collection with temperatures dropping down to just 13°C in 
> winter - even though our collection is below surface level.
>
> Another issue might be cold outer walls if the HVAC is shut off, as 
> there could be a risk of mould growth if temperatures drop below the 
> Dew point and condensation appears (especially if walls are painted 
> with emulsion paint). Outer walls and bottom shelves should be 
> monitored carefully. Ventilation with normal fans to avoid 
> condensation and installation of dehumidifiers (which also move air) 
> is helpful.
>
> Great care should be taken with construction workers in the collection 
> - we had the case here that electricians tossed few jars (sad, but not 
> a drama), BUT they had their cable roller on the floor just below this 
> shelf, and there was a considerable alcohol spillage ... they were 
> really lucky, as was our collection. So be aware that the 
> subcontractor of the subcontractor is informed and adheres to safety 
> measures.
>
> Alcohol vapours should not be that much of an issue (this depends of 
> course on your seals and closures), but lowering the air exchange 
> rates and likely reducing temperatures because the HVAC is turned off 
> usually lowers the evaporation pressure inside jars as well. You could 
> think to install gas detectors that indicate and warn if alcohol 
> vapours would accumulate. Last winter, we opened the door to our 
> storage rooms when the museum was closed due to COVID and with the 
> exception of an emergency team staff was working from at home. We 
> placed the dehumidifiers in the door space to propel (warm) air into 
> storage spaces to at least stabilise temperatures around 14°C - which 
> worked fairly good. But of course, this wasn't a proper solution.
>
> This is a European view which might not be in line with the views and 
> requirements of US (fire prevention) regs, but the general concerns 
> are of course the same and I hope this is useful.
>
>
> Dirk
>
>
> Am 11.08.2021 um 19:15 schrieb Vanessa Delnavaz:
>>
>> Hi All,
>>
>> I was wondering if anyone has any solutions for temporary ventilation 
>> of an alcohol storage space while HVAC is offline for construction 
>> over a long period of time (i.e. months).
>>
>> Thank you,
>>
>> Vanessa
>>
>> *Vanessa Delnavaz | Invertebrate Zoology Collection Manager*
>>
>> 805-682-4711 ext. 146 | www.sbnature.org <http://www.sbnature.org/>
>>
>> *SANTA BARBARA MUSEUM OF NATURAL HISTORY*
>>
>> 2559 Puesta del Sol, Santa Barbara, CA 93105
>>
>> 805-682-4711 | Fax 805-569-3170
>>
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>
>
> -- 
>
>
> Dirk Neumann
>
> Tel: 089 / 8107-111
> Fax: 089 / 8107-300
> neumann(a)snsb.de
>
> Postanschrift:
>
> Staatliche Naturwissenschaftliche Sammlungen Bayerns
> Zoologische Staatssammlung München
> Dirk Neumann, Sektion Ichthyologie / DNA-Storage
> Münchhausenstr. 21
> 81247 München
>
> Besuchen Sie unsere Sammlung:
> http://www.zsm.mwn.de/sektion/ichthyologie-home/
>
> ---------
>
> Dirk Neumann
>
> Tel: +49-89-8107-111
> Fax: +49-89-8107-300
> neumann(a)snsb.de
>
> postal address:
>
> Bavarian Natural History Collections
> The Bavarian State Collection of Zoology
> Dirk Neumann, Section Ichthyology / DNA-Storage
> Muenchhausenstr. 21
> 81247 Munich (Germany)
>
> Visit our section at:
> http://www.zsm.mwn.de/sektion/ichthyologie-home/
>

-- 

Dirk Neumann

Tel: 089 / 8107-111
Fax: 089 / 8107-300
neumann(a)snsb.de

Postanschrift:

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

Besuchen Sie unsere Sammlung:
http://www.zsm.mwn.de/sektion/ichthyologie-home/

---------

Dirk Neumann

Tel: +49-89-8107-111
Fax: +49-89-8107-300
neumann(a)snsb.de

postal address:

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

Visit our section at:
http://www.zsm.mwn.de/sektion/ichthyologie-home/

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