Dear Adam, try Messer Griesheim, http://www.spezialgase.de/spezialgasekatalog/ best wishes, Dominik At 02:08 PM 5/21/01 +0200, you wrote: > Dear Isogeochem subscribers, Could you please advise me where I can >buy small container of hydrogen gas of known isotopic composition vs >V-SMOW? Thank you in advance. Best regads. ############################# >Adam Porowski >Department of Hydrogeology >Institute of Geological Sciences >Polish Academy of Sciences >ul. Twarda 51/55 >00-818 Warsaw, POLAND >[log in to unmask] ********************************************************** Dipl. Geol. Dominik Fleitmann Geologisches Institut Universitaet Bern Baltzerstrasse 1 3012 Bern SWITZERLAND e-mail: [log in to unmask] phone: +41-31-631-8775 fax: +41-31-631-4843 http://www.earthsci.unibe.ch/people/fleitman/index.html