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Base Number
Definition:
Base Number measures a lubricant's alkaline reserve, or ability to neutralize acid. When Acid Number and Base Number approach the same number, the oil should be changed or "sweetened" (new oil should be added).
Standard Test Method Used:
Reporting Measurement:
mg KOH/g (milligrams potassium hydroxide per gram of sample)
Amount of Sample Needed:
4g
Test Limitation:
Used for used engine oils only to determine safe extension of drain intervals. Contamination by coolant can artificially raise TBN.
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POLARIS Laboratories® Expands into Central America
POLARIS Laboratories® is again extending its global reach with a new laboratory in Guatemala City. The expansion supports the company's global strategy for continued growth and is indicative of the strength and potential of the Central American market.
POLARIS Laboratories® Makes Inc. 5000 List Third Year in a Row
For the third year in a row, POLARIS Laboratories® has been named to Inc. Magazine's List of 5000 Fastest Growing Privately-Held Companies in America.
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