Buy your AdBlue® From ACT

 

WHAT IS IT?

AdBlue®is the registered trademark for AUS32, or Aqueous Urea Solution 32.5% solution of high-purity urea in 67.5% specific quality and high purity deionised water,  that is used with the Selective Catalytic Reduction system (SCR) to reduce emissions of Nitrogen dioxide (NO2) generically referred to as NOx  which also covers Nitric Oxide (NO).  It is essential to purchase from a supplier who sells  Diesel Exhaust Fluid  (DEF)  / AdBlue® to the global ISO specification. ISO22241.  

 

HOW IS IT USED?

The DEF fluid (AdBlue®) is precision injected into the exhaust system after the particulate filters. The fluid then vaporises and mixes with the gasses in the exhaust system, the resultant ammonia/NOx mix  feeds the SCR = Selective Catalytic Reduction system. The reaction in the SCR reduces the NOx so the exhaust emits Nitrogen and water vapour instead. Economical in use – consumption is between 3% & 6%, of diesel used - as a rule of thumb for tractors, allow 5%.

 

STORAGE
AdBlue®  (DEF) should be stored in a cool, dry, well ventilated area, between -10°C and 32°C,  out of direct sunlight, dust free and preferably covered so no moisture can enter via any pressure valves or  breather holes on the containers, e g. snow can cause contamination as it melts if allowed to accumulate on the top of the containers. The type of contamination is detectable initially by refractometer and then checked by  expensive testing so best just keep it clean, really clean e.g. If you are washing out a jug  to transfer it or rinsing a funnel do it with de-mineralised water or better still, use AdBlue®. Washing with “clean” tap water  will contaminate the AdBlue® even after the funnel /jug has dried.   AdBlue® (DEF)  is mildly corrosive and should not be stored in, or dispensed from equipment made of mild steel, brass, copper or aluminium as these elements will contaminate the SCR and can cause irreversible damage to the catalyst.  AdBlue® Freezes at -11.5 ºC;  Freezing and thawing will not degrade the fluid. And do not use AdBlue® containers with broken seals or transfer containers that are left opened. Currently there is no requirement in the UK for storage with a bund so most efficient method is to use the 1 cube metre intermediate bulk container (IBC).