DEF Specifications (Adblue Specifications / Liquid Urea Specifications)

DEF Specifications (Adblue Specifications / Liquid Urea Specifications)

March 05, 2024

What is full form of DEF?
Diesel Exhaust Fluid (DEF) - Reduced emissions - Land Rover
Diesel Exhaust Fluid (DEF) also known as AdBlue®, is a non-toxic, colourless, odourless and non-flammable fluid. Stored in a dedicated tank in your car, it is injected into the exhaust system to clean exhaust gases.

What should DEF quality be?
The concentration of the DEF must be 32.5% urea (+/- 0.7%). The DEF concentration should be checked when; the vehicle has been stored for an extended period of time, it is suspected that water has been added to the DEF tank, or the warning light appears on dashboard.

What is the ISO standard for DEF?
The production, handling, and transportation of Ocean Blue Diesel Exhaust Fluid (DEF) are governed by the ISO 22241 standard.

What is DEF formula?
DEF is formulated from a precise mixture of 32.5% synthetic urea and 67.5% de-ionized water. This carefully balanced blend plays a pivotal role in reducing harmful emissions from diesel engines.

What is the color of DEF fluid?
DEF is usually clear, but when it comes into contact with copper or brass it will appear “light blue,” and if it comes into contact with steel or galvanized steel, it will appear to be a “rusty” color. DEF is heavier than diesel fuel and oil, so these fluids will float on top of the DEF. It has a slight ammonia smell.

What is the freezing point of DEF?
The freezing point of DEF is 12 degrees Fahrenheit and -11 degrees Celsius. If you're driving in low temperatures, it's important to leave some room in the DEF tank. If the DEF tank is completely full, when it freezes, the water in it will expand and could crack the tank.

What is the temperature of DEF?
between 12 and 86 degrees Fahrenheit
DEF's shelf life is directly related to its storage temperature. Recommended storage temperatures between 12 and 86 degrees Fahrenheit to maintain an optimal shelf life of up to two years.

What is the boiling point of DEF?
Boiling Point >212˚F Crystallization Point 12˚F Pounds/Gallons 9.10 Specific Gravity (Water=1) 1.09 Vapor Density (Air=1) 0.6 H2O,>1 Water Solubility 100% Appearance Colorless Clear Liquid Odor None to Slight Ammonia Evaporation Rate. Rasayan Vidhi Pvt. Ltd. is a premier manufacturer of diesel exhaust fluid Plants and is proud to offer .

How is DEF fluid stored?
Our Tips For Storing DEF in the Summer So It Doesn't Go Bad ...
DEF should be stored in a cool, dry place with the product temperature between 12 to 86 degrees Fahrenheit. You can keep the container in a shaded area or cover it with a canopy or tote cover. Make sure the caps are securely tightened as well. You can also learn if DEF freezes here.

How is DEF fluid checked?
Tech Tips - When to Test Diesel Exhaust Fluid - Noregon
Methods of Testing DEF: Technicians can use various methods to test DEF quality, such as a refractometer where you take a sample of the DEF, place it on the sight glass, close the lid, and hold it up to the light. Ideally, you expect to be at a level of 32.5%.

How much DEF fluid is used?
DEF is consumed at a rate of about 2-3% relative to the amount of fuel you are using. This means between 1.2 and 2.0 gallons of DEF will be required for a vehicle with a 65-gallon gas tank. If you have a five-gallon DEF tank, DEF should be replaced every third or fourth time you fill up.

Is DEF flammable?
Diesel Exhaust Fluid
Diesel Exhaust Fluid (DEF) is an automotive grade of 32.5% urea mixed with 67.5% demineralized water. It's non-hazardous, non-toxic and non-flammable. DEF is used in Selective Catalytic Reduction (SCR) systems to change diesel powered bus, car and truck NOx emissions to nitrogen and water.

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