Hazard Alert: Diesel Exhaust Fluid

Safety Alert Type: 
Widely found throughout BC’s forest industry
Company Name: 
Stones Bay Holdings Ltd., Fort St. James
Details of Incident / Close Call: 

Diesel Exhaust Fluid (DEF) is a product that has become more and more common in the forest industry. It is designed to help reduce levels of oxides of nitrogen that are emitted from diesel engines. These emissions are harmful to human health and to the environment as well.

DEF is injected into exhaust systems where it vaporizes and decomposes to form ammonia and carbon dioxide. The ammonia and exhaust gas pass through the catalyst and converts the mixture to nitrogen and water.

Diesel Exhaust Fluid is considered an eye and skin irritant and is not flammable. If your skin comes into contact with DEF, wash immediately with soap and water. For other health effects, please the attached Material Safety Data Sheet (MSDS) for TerraCair DEF.

DEF has a freezing point of minus 12 degrees Celsius and should be stored at normal room temperature in a closed container away from incompatible materials. The low freezing point indicates that in extreme cold temperatures, the DEF will freeze. Equipment or vehicles that use Diesel Exhaust Fluid normally will have heaters in the reservoir, allowing them to work in cold environments.

Diesel Exhaust Fluid should be used in well-ventilated environments. Proper PPE should also be worn when handling DEF. Safety glasses with side shields and impervious gloves are manufacturer’s recommendations.

For more information on this submitted alert: 

Refer to the MSDS for Diesel Exhaust Fluid (found in the attached pdf).

File attachments
Diesel Exhaust Fluid.pdf
Careers | Contact Us | Top | Privacy Statement | Terms and Conditions |
Copyright © 2006-2018 BC Forest Safety Council. All rights reserved.