WHAT IS DEF?
DEF is not a fuel or fuel additive, but an operating fluid for Selective Catalytic Reduction technology that is used in diesel-powered vehicles. It is a nontoxic solution of 67.5% water/ 32.5% automotive grade urea. DEF helps convert NOx into nitrogen gas and water vapor. It is stable, colorless, odorless, and meets accepted international standards for purity and composition. It is injected into the exhaust system of diesel-powered vehicles to meet the 2010 EPA standards for reduced NOx emissions.
DEF is more susceptible to contamination than gasoline or diesel fuel. It must be handled to prevent introduction of any impurities. Any surfaces that come in contact with DEF must be kept clean and dry.
DEF should only be used with components designed for DEF stainless steel and many additive-free plastics are suitable for use with DEF. DEF systems must be dedicated for use with DEF . Any exposure to hydrocarbon fuels will contaminate DEF .
Meter accuracy is determined by dispensing DEF into a calibrated proving can and noting the volume on the meter register.
Even though DEF is a non-hazardous substance, it cannot be discarded into a storm sewer or anywhere it could reach surface water or groundwater. One disposal option is to return the metered DEF to the supplier. Another alternative is to return the DEF to the storage tank.
DEF is not flammable by WHMIS/OSHA criteria.
· The Seraphin® test measures Series “FS”, “E”, “E2”, or “E3” ARE NOT compatible with DEF.
· You should use a Seraphin® EESS0005GB-DEF test measure which has all wetted surfaces constructed of compatible DEF materials.
· The Seraphin® funnels E810030 and E300483 ARE NOT compatible with DEF.
· You should use a Seraphin® E810030-DEF constructed of compatible DEF materials.
· Each Diesel Exhaust Fluid test measure comes with a OPW® magnetic field Mis-Filling Prevention Device, E80488
· Polyethylene compatible cap is provided with each measure