• The AdBlue® brand is owned by the German Automobile Industry Association (VDA). • DEF / Diesel Exhaust Fluid is a generic term used in the United States. • ARLA32 (Agente Redutor Liquido de oxido de Nitrogênio Automotivo) is a generic term used in South America. • AUS32 is the general term used for all urea solutions manufactured according to ISO22241. • All these names relate to urea solutions that can be used in road vehicles.

AUTOZOLV DEF is an aqueous solution of urea. It requires water and urea to make it. The water is first extensively purified to remove any impurities and achieve low conductivity. This extensive demineralization process can be done by reverse osmosis. Urea is then introduced into the water at a ratio of 32.5 kg urea per 67.5 kg water or 32.5% urea. The mixture can then be transferred to a storage tank or directly packaged in a can, barrel, an IBC or even a tanker. AUTOZOLV DEF must be manufactured in accordance with ISO 22241. The AdBlue brand itself is owned by the German Association of the Automobile Industry (VDA). This association follows the update of the DIN 70070 standard and the ISO 22241 standard, regulating the manufacture of AdBlue.

In the treatment of industrial fumes, urea solutions are used. Urea is injected into the exhaust gases and fumes. In diesel engines, we talk about SCR - Selective Catalytic Reduction (SCR) and RNCS - Selective Non-Catalytic Reduction (SNR). Both of these methods have the same goal: to convert nitrogen oxides in emissions into harmless gases. Thus, adding urea to the exhaust converts these nitrogen oxides (NOx) into water and nitrogen (a gas that represents 4/5 of the air we breathe). NOX + CO(NH2)2 = H2O + N2 This allows manufacturers to meet the most stringent emission standards, such as the EURO6 standard for cars. F&Q

DEF is not a fuel or fuel additive, DEF is never added directly to, and never comes into contact with, diesel fuel. It is stored in a dedicated DEF container with its own gauge and metering system. What is the quality standard of Diesel Exhaust Fluid or AdBlue? The quality of AdBlue® is specified by ISO standard 22241-1. How is Diesel Exhaust Fluid quality measured? The most important component of AUTOZOLV DEF is highly pure urea. Its concentration (31.8-33.2%) is the most important qualitative product parameter. We offer a special device to measure the concentration of urea - AUTOZOLV DEF (AdBlue®) urea concentration gauge (refractometer). It measures the concentration of urea in the fluid.

The transport industry is the largest contributor to greenhouse gas emissions – diesel-powered vehicles and equipment account for almost half of all nitrogen oxides (NOx). Since 2006, the fourth edition (Euro 4) of EU legislation on diesel emissions has come into force. The rules were tightened with each update and the fourth edition made SCR fitting mandatory on all new lorries. Euro 1 came into force in 1993, where any truck producing more than 2.72 g/km of CO must use AUTOZOLV DEF (AdBlue.) Since then, regulation has become more stringent with the introduction of Euro 6 in September 2014, which will force any truck producing 0.50 g/km CO and 0.08 g/km NOx to use AdBlue fluid.

Urea is used as agricultural fertilizer. It is the most widely used fertilizer in the world. High quality industrial grade SNCR urea can be used in solutions. It allows for the purification of fumes from thermal and biomass power plants. Automotive grade urea (AGU) is the purest urea. It enables the manufacture of AdBlue, DEF, AUS32 and ARLA32 using industrial lines or integrated AdBlue manufacturing skids

AUTOZOLV DEF converts harmful NOx from your diesel vehicle exhaust into harmless nitrogen and steam, thus significantly reducing emissions of nitrogen oxides (NOx), a major source of air pollution and smog in urban centers. If you do not use DEF (AdBlue)our car's diesel engine will not be able to meet the latest emission standards. Without DEF (AdBlue,) the engine will emit higher levels of nitrogen oxide (NOx) than is legally allowed. This can lead to fines and damage to your vehicle's engine and other parts

As standards for transport vehicles, off-road vehicles and passenger engines have tightened, AdBlue has become important in helping to reduce NOx output from engines. AdBlue is designed to meet the latest Euro 6 exhaust emission regulations, which is important for improving public health. Keeping the supply onsite is a wise decision for any business that relies on diesel to complete its operations.

When diesel engines burn fuel, polluting chemicals and compounds are produced, including nitrogen oxides and nitrogen dioxide. These elements accumulate in the air and form smog and acid rain. AUTOZOLV DEF works through a process called Selective Catalytic Reduction (SCR). Before any emissions are released, the solution is sprayed fine into a diesel exhaust at a ratio of about 5% of the diesel fuel. It releases ammonia, which catalyzes a chemical reaction, and converts dangerous chemicals into nitrogen, water vapor, and CO2 — all of which are harmful to our lungs and atmosphere. There were no definitive European exhaust emission standards until the implementation of Euro 1 in 1993.

All commercial diesel-engine vehicles over 7.5 tonnes and manufactured after October 2006 (Euro IV and Euro V) are fitted with Selective Catalytic Reduction (SCR) technology. AdBlue must be injected into the exhaust gases as a post-combustion process – for the SCR to function and the vehicle to operate.

Do not start your engine as this can damage your engine depending on how much DEF has been injected. Empty and clean your tank and discard the mixture. For more information on cleaning and emptying your tank, contact your vehicle supplier or our team here at Nationwide Fuels.

When your SCR-equipped vehicle's DEF levels run low, a warning alert will appear on the dashboard. When it runs out completely, the car loses power and reduces its emissions to meet legal standards. DEF returns its performance when the tank is full.

No, it will not damage the engine, however, it will affect its performance until you next fill it up.

AUTOZOLV DEF AdBlue is not a hazardous substance and has no known effects or serious hazards. Urea is a raw material that occurs naturally in our digestive system. However, we strongly advise that you never inhale or ingest AUTOZOLV DEF AdBlue due to the risk of a reaction. Although not dangerous, AdBlue is corrosive and can dissolve materials not listed as AUTOZOLV DEF AdBlue proof in ISO 22241, which may cause damage to your SCR catalyst. You may want to wear gloves when dispensing AUTOZOLV DEF AdBlue to keep your hands clean, but AUTOZOLV DEF AdBlue is easily washed off with water. It may stain any clothing. Advantages of AUTOZOLV DEF? Lower NOx and CO2 emissions from commercial vehicles are not the only benefits of AUTOZOLV DEF This increases your fleet's MPG and helps your business achieve green goals and accreditation. It is completely safe to handle, easy to store and non-flammable. How do I keep my AUTOZOLV DEF AdBlue clean and safe? To avoid the high cost of replacing your AUTOZOLV DEF follow these simple steps: • Always use dedicated dispensing equipment to transfer AUTOZOLV DEF to avoid spillage • Ensure that the tank lid is tightly closed to prevent ingress of water and contaminants • If you suspect DEF contamination, you should not use the solution as it can damage your engines. • If your DEF freezes when the temperature drops below -10°C, don't worry – once it melts, it can reuse

AUTOZOLV DEF AdBlue is not dangerous for the environment - so you can dilute a small spill with water and wipe it up. In the event of a large spill, ensure that the solution does not enter any drains or waterways. Then, contain the spill with a spill kit and dispose of it safely. Make sure you never reuse leaked AUTOZOLV DEF AdBlue as it is contaminated. This can cause costly damage to your vehicle's SCR system.

DEF should preferably be stored at temperatures ranging from 0 to 30°C and protected from direct sunlight. It should be carefully sealed while not in use. DEF can freeze below -11°C, therefore utilize a storage place that is not below this temperature. If DEF has frozen, it can be reused after it has thawed and returned to its former state. To avoid contamination, the storage room must be clean and dust-free, especially when the car is filled with DEF. If you purchase packaged DEF, we will ship it to you in sealed packs. If the storage guidelines are followed, DEF can be kept for up to a year.

To identify quality DEF, it is important to remember the following: • DEF should always be a colorless and clear liquid • Purchase DEF only from dealers only • Check that the container or dispensing system contains "DEF according to ISO 22241" • Watch out for similar brand names that may be inferior in quality • Not all urea solutions are DEF or AdBlue