Testing % of Water, please verify

Collecting, filtering and dewatering of WVO SVO vegetable oil. For Biodiesel producers too.

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Testing % of Water, please verify

Postby FerndaleFryer » Wed Dec 10, 2008 8:42 am

I need confirmation that I am correct in my assumption in calculating water % in wvo sample.

I take about 250g of oil out of a 250F stirred mixture, then heat it with a mep gas tourch until the oil gets that burnt smell, then reweigh it.

if my sample then weights 249g am I correct in assuming that the % water is less than 1%? like 0.04%?

Just to confirm I added 20g of water, then did the same test and the weight came back as 249g.

Thx
Ryan
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Postby WD8CDH » Sun Dec 14, 2008 5:59 pm

Since oil will hold dissolved water, especially at higher temperatures, all you can assume is it has about 0.4% LESS water than it did before.
Ron Schroeder
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