TBN meaning in oil and gas
Definition
TOTAL BASE NUMBER
TBN means TOTAL BASE NUMBER. A measure of the amount of basic additives in a lubricant. High TBN is desirable in a crankcase oil to control corrosive engine wear from the acids of combustion. May be measured by ASTM test…
A measure of the amount of basic additives in a lubricant. High TBN is desirable in a crankcase oil to control corrosive engine wear from the acids of combustion. May be measured by ASTM test methods D 664 (Total Base Number) or D 2896 (Alkalinity Value). These methods may give different results for a given oil.
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