Temperature & Diffusion coefficient  

Posted by Ray O'Halloran on June 28, 2005 at 16:48:33:

I am working on polyurethane insulation on offshore oil, chemicals and gas pipelines and need to produce useable experimental data related to firstly obtaining a diffusion coefficient and secondly to measure the effects of temperaure change on the diffusion coefficient.

I am told that there is some debate as to the thickness of sample to be used as too thin a sample can give inaccurate results, any advice on this would be greatly appreciated.


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