[Ekodum]NIST data on insulation properties (fwd)

Jan Hollan
Thu, 25 Apr 2002 21:25:28 +0200 (CEST)

apropos, doslo to nekomu pres strawbale-l? Me ne, tak nevim, jestli to tam
mam poslat znova... (odpovezte prip. mne, ne do listu). dik, jenik

---------- Forwarded message ----------
Date: Sat, 20 Apr 2002 19:50:52 +0200 (CEST)
From: Jan Hollan <jhollanAamper....muni.cz>
To: Hannes Hohensinner <hohensinAmail....tuwien.ac.at>
Cc: strawbale-lAeyfa...
Subject: NIST data on insulation properties

(for NIST data on straw, see below)

Hi Hannes, 

> Ich wollte dich noch bitten, ob du mir die Webseite der Normungs und
> Standardisierungs Institution in Paris schicken könntest, die bereits in den
> 50iger Jahren die Dämmwerte von Strohballen und anderen Naturdämmstoffen
> ermittelt hat.
> Vielen Dank und liebe Grüße
> Hannes

A plenty of measurements of insulation properties of most various
materials are available on the NIST server, so not in France, but in the
USA. The database is 
 -- just give ``straw'' as a material and three results from 1949 (!) will
appear (two for a standard winter case, one for a sauna perhaps). The only
missing value is the bulk density, perhaps it has been a bit lower than
that needed to get conductivity below 0.040 W/(m.K). But still, 0.045 is
good enough!

My favourite URL for NIST is this one:
   Linkname: The NIST Reference on Constants, Units, and Uncertainty
        URL: http://physics.nist.gov/cuu/index.html
 -- unlike the commercial BIPM in Paris, they give a lot of very useful
information to all the world, God bless America!

schöne Grüße,

 I started searching the URL anew (I tried some months ago already,
unhappy that don't see this important reference in my lynx bookmark
files) by giving a string 
  thermal conductivity 
 and interesting results appeared, but then I decided that I perhaps have
 the URL stored somewhere and found it by grep in my netscape bookmarks, 
  grep -i NIST .netscape/bookmarks.html
 fortunately. Thanks to your question following my remark on the
gathering, I found it again...