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Hi All; The other day I threw out a question but it was an afterthought on another thread. Nobody has answered so here I am trying again on a specific thread. I am interested to know how many on the list do Jan Warnqvist's methanol test and how much precipitate do people get? How much is ok? The description states that every 1 ml equals 4% contaminate and indicates what 'causes washing problems' I have absolutely no washing problems now with the way my reactor is running, my BD has a density of 0.88, there is a dramatic lightening of color after the split, I get a reasonable amount of glycerine (not that this means a hell of a lot) but as an example, last batch was horrible oil I had to use 15.5 grams of KOH per liter oil and I ended up with 23 liters of BD at the end out of 25 liters oil. The first wash water was milky white and the 4th was almost like drinking water and the PH was 7.3 vs 7.4 before washing. No detectable 3rd layer formed at any stage of the process. By all accounts this should be good quality fuel but I will still get a little fallout from the methanol test ( I haven't quantified it yet because I didn't do in in a graduated cylinder but there is definitely a clear amber liquid phase at the bottom on the tube after settling) So my question once again is who else uses this test and how is it going for you? Does anyone get a perfect result (no fallout) from this test? And finally should I be concerned by a couple of percent contamination in my fuel? I did search the mail archive twice using 'methanol test' and also 'Jan Warnqvist' as keywords, but the returns were not so informative. List members I need your wisdom! Jan perhaps you are most qualified to answer but I would really like to get a sense of the percentage of the list members who are running this test. So chime in! Joe |
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