I was hanging around with the owner of the junk food plant that gives us WVO today, and he asked me how to go about setting up in-house ffa testing. Turns out that industrial food production facilities have to control for FFA in their fryer oil (by law), so he spends $50 per test to have ffa testing done 20 times a month by a lab or something like that. OUCH. I had previously told him about crude titration and of course he got really excited about saving themselves some money.
Could somebody give me some info on how the results (in ml) of the crude titration that we do for biodiesel making correlate with ffa content (in percent). Obviously in his case the labware would be a lot nicer than what I use. By the way the regulations say that their oil has to be under .8% ffa I believe. When I do a (very crude) titration on the WVO I get from them, it tests to anywhere from 1 to 1.5 ml- and I'm doing this to oil that has sat and gotten old and nasty in drums on the guy's lot for a year and has all kinds of nasty problems, and I'm also using phenol red instead of phenolpthaleine or other indicators so there's some things that are 'off' in my own testing procedure, which is why I keep calling it crude. (I'm of course aware of what the proper way to do it is). thanks, Mark Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
