Truck News

News  February 17, 2014 6:38PM

Brenntag asks, are you testing the quality of your DEF?

TORONTO, Ont. -- Brenntag is advising fleet owners to periodically test the quality of their diesel exhaust fluid (DEF) using a combination of three testing methods.


TORONTO, Ont. — Brenntag is advising fleet owners to periodically test the quality of their diesel exhaust fluid (DEF) using a combination of three testing methods.

The first method is to inspect the fluid visually, looking for contamination, including debris floating in the fluid. If DEF is not clear, you may have a problem with contamination, Brenntag warns.

The second method involves using a handheld mechanical tester, known was an electronic handheld refractometer. A refractometer measures the concentration specifications of DEF, to ensure 32.5% of the fluid is urea.

The third method involves laboratory testing using certified equipment. Sending samples of DEF to an outside lab, or having a major distributor do the testing in-house, is an option.

“Laboratory testing is the most comprehensive testing you can perform and should include measuring all 18 parameters required by ISO 22241,” Brenntag advises. “This includes urea content, density, and the presence of mineral contaminates beyond acceptable limits.”

Brenntag suggests using all three testing methods in reasonable intervals to ensure quality.


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