I work in a lab with all kinds of different testing supplies. But we are in a different field that automotive and the test methods are are very different. Does anyone no how to run a TBN test and what is needed to run it. So far I have been able to come up with a small sample of oil, dont no the exact amount for the test but it was somewhere around 3 to 10 grams, dilute with 50 mls of 50:50 H2O/Isoprpyl Alcohol and titrate down with KOH. Dont no the strengh of the KOH or what PH to titrate to and what the numbers would be without a chart. Does anyone have acess to the test methods and would like to share them I could run samples a plenty.