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AUS 32 (Aqueous Urea Solution 32.5%), commonly known as AdBlue or Diesel Exhaust Fluid (DEF), is a high-purity 32.5% urea and 67.5% deionized water solution. Used in modern diesel engines with Selective Catalytic Reduction (SCR), it reduces nitrogen oxides (NOx) in exhaust gases into harmless nitrogen and water.

This video explains how AdBlue is used to reduce harmful exhaust emissions:

Usage: It is injected into the exhaust stream, not the fuel tank. Roughly 5 liters are used for every 100 liters of diesel.

Function: Without it, modern diesel vehicles will not start or will operate in a reduced-power "limp" mode.

Safety: It is non-toxic, non-flammable, and safe to handle, though it can be corrosive to some metals.

Standardization: It must meet the ISO 22241 standard.

Common Brands/Names: AdBlue (Europe/Australia), DEF (Americas), ARLA32 (Brazil).

Determination of Trace Elements in Aqueous Urea Solution (AUS 32 ...
To reduce emissions from diesel engines, especially nitrogen oxides (NOx), selective. catalytic reduction (SCR) and exhaust gas re...
Agilent Technologies
AUS 32 Urea Solution SAFETY DATA SHEET
6 things to know about AdBlue®, DEF, AUS32, ARLA32
AdBlue is an aqueous solution of urea. To make it, you need water and urea. The water is first extensively treated to remove any i...
Palamatic Process

Web results

Diesel exhaust fluid

Wikipedia

https://en.wikipedia.org › wiki › Diesel_exhaust_fluid

Wikipedia

https://en.wikipedia.org › wiki › Diesel_exhaust_fluid

Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue [3] ) is a liquid used to reduce the amount of air pollution created by a ...Read more

Web results

6 things to know about AdBlue®, DEF, AUS32, ARLA32

Palamatic Process

https://www.palamaticprocess.com › en-us › blog › six-...

Palamatic Process

https://www.palamaticprocess.com › en-us › blog › six-...

AUS32 is the generic term used for all urea solutions manufactured in accordance with ISO22241. All of these names relate to urea solutions that can be used in ...Read more

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Potential Problems. What are the potential problems with diesel exhaust fluid?

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What are the potential problems with diesel exhaust fluid?

Usage. What is diesel exhaust fluid used for?

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What is diesel exhaust fluid used for?

Ingredients. What are the ingredients in diesel exhaust fluid?

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What are the ingredients in diesel exhaust fluid?

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What are the different brands of diesel exhaust fluid?

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AUS 32 Urea Solution SAFETY DATA SHEET

Hino Trucks

https://www.hino.com › content_media › raw › s...

Hino Trucks

https://www.hino.com › content_media › raw › s...

PDF

Feb 16, 2017 — AUS 32 Urea Solution. SAFETY DATA SHEET. 01/15/2015. Supersedes Revision: 114484-GHS. Product Code: AUS 32 Urea Solution. Product Name: Kem ...Read more

5 pages

Images

AUS-32 Adblue Diesel Exhaust Fluid, Packaging Size: 20 Litre

Custom DIN 70070 Standard AdBlue® AUS 32 Solution For Diesel ...

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Web results

Diesel Exhaust Fluid (DEF) AUS 32

Irving Oil

https://www.irvingoil.com › en-CA › lubricant › diesel-...

Irving Oil

https://www.irvingoil.com › en-CA › lubricant › diesel-...

Our AUS 32 DEF transforms harmful nitrogen oxide (NOx) emissions from diesel powered vehicles into harmless water vapour and nitrogen.Read more

Determination of Trace Elements in Aqueous Urea Solution ...

Agilent Technologies

https://www.agilent.com › library › applications

Agilent Technologies

https://www.agilent.com › library › applications

PDF

Apr 14, 2020 — In this study, an Agilent 5800 radial view (RV) ICP-OES was used to analyze AUS 32 diesel exhaust fluids according to the. ISO-22241 standard ...Read more

5 pages

What people are saying

Trending posts and discussions

Decoding DEF warning lights.

Drivers are baffled by mysterious DEF dashboard lights and error codes, desperately seeking fixes, often told to check the manual.

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Popular comment · Thanks for posting on r/MechanicAdvice ! Please review the rules . Remember to please post the year/make/model of the vehicle you are working on. Post's about bodywork, accident damage, paint, dent/ding, questions it belongs in r/Autobody r/AutoBodyRepair/ or r/Diyautobody/ Tire questions check out https://www.reddit.com/r/MechanicAdvice/comments/k9ll55/can_your_tire_be_repaired/ . If you dont have a question and you're just showing off it belongs in r/Justrolledintotheshop Insurance/total loss questions go in r/insurance This is an automated reply I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

3 comments · Mar 8, 2025

r/MechanicAdvice

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Web results

DEF | AUS32 | AdBlue | Purchase Diesel Exhaust Fluid

BuySinopec.com

https://buysinopec.com › News

BuySinopec.com

https://buysinopec.com › News

Feb 16, 2016 — AW 32 Hydraulic Oil. AW 32 Hydraulic Oil - 55 Gallon Drum. Sale price$449.00 Regular price$599.00. AW 46 Hydraulic Oil. AW 46 Hydraulic Oil - 55 ...Read more

Free delivery7-day returns

32

Guangzhou EverBlue Technology Co.,Ltd.

https://www.everbluesolution.com › blog › 32_bk

Guangzhou EverBlue Technology Co.,Ltd.

https://www.everbluesolution.com › blog › 32_bk

Aqueous urea solution AUS 32 reduces nitrogen oxide emission from auto exhaust system. The solution is injected to diesel engine exhaust systems before ...Read more

AUS32 (AdBlue 32,5%) - OCI – Documentation

OCI Global

https://documentation.oci-global.com › 2024/04

OCI Global

https://documentation.oci-global.com › 2024/04

PDF

Persistence and degradability. Readily biodegradable. 12.3. Bioaccumulative potential. AUS32 (AdBlue 32,5%). Partition coefficient n-octanol/water (Log ...Read more

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Diesel exhaust fluid

Diesel exhaust fluid - Wikipedia

Urea solution 32.5% - Azomureș

What is AdBlue? Why does your car need it? | RAC Drive

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6 things to know about AdBlue®, DEF, AUS32, ARLA32

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AUS 32 Urea Solution SAFETY DATA SHEET

Web results

Diesel Exhaust Fluid (DEF) AUS 32

Determination of Trace Elements in Aqueous Urea Solution ...

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Web results

DEF | AUS32 | AdBlue | Purchase Diesel Exhaust Fluid

32

AUS32 (AdBlue 32,5%) - OCI – Documentation

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