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    These are results for ISO 22241 Certificate Urea AdBlue®
    Search instead for ISO22241 Certificate Urea AdBlue®
    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    ISO 22241 is the international standard defining the quality, testing, handling, and storage of AdBlue® (AUS 32), a 32.5% urea solution used to reduce
    NOxcap N cap O sub x
    𝑁𝑂𝑥
     emissions in SCR diesel engines. Compliance ensures 31.8–33.2% urea concentration, high purity to prevent SCR system contamination, and proper density. 
    Key Aspects of ISO 22241 
    • Quality Requirements (ISO 22241-1): Specifies the parameters for the urea solution (AUS 32) to ensure SCR converter functionality.
    • Test Methods (ISO 22241-2): Defines methods to analyze urea content, refractive index, density, and impurities (e.g., biuret, aldehydes, metals).
    • Handling & Storage (ISO 22241-3): Sets rules for transporting, storing, and handling to prevent contamination and degradation, suggesting temperatures between
      −5∘
      𝐶
       and
      25∘
      𝐶
      .
    • Refilling Interface (ISO 22241-4): Defines requirements for dispensing equipment and interfaces to prevent misfilling. 
    AdBlue® Technical Specifications (ISO 22241) 
    • Urea Concentration:
      32.5
      %
      ±0.7
      %
       (mass/mass).
    • Density:
      1.08701.0870
      1.0870
       to
      1.0930
      g/cm3
       at
      20∘
      𝐶
      .
    • Refractive Index:
      1.38141.3814
      1.3814
       to
      1.38431.3843
      1.3843
       at
      20∘
      𝐶
      .
    • Impurities: Strict limits on insoluble matter, biuret (
      ≤0.3
      %
      ), and metals to protect the catalyst.       
    Importance of Certification 
    Using AdBlue compliant with ISO 22241 is critical to avoid damaging the SCR catalyst, reducing
    NOxcap N cap O sub x
    𝑁𝑂𝑥
     efficiency, and causing engine failure. Products often carry an API certificate to prove compliance, such as BlueDEF®. 
    AdBlue is a registered trademark of the VDA (Verband der Automobilindustrie). 
    • ISO 22241 | Diesel Exhaust Fluid (AdBlue) Testing | Measurlabs
      ISO 22241 is a testing package for diesel exhaust fluid (DEF). DEF is an additive used in diesel-powered vehicles to help reduce n...
      Measurlabs
    • ISO 22241-1:2019(en), Diesel engines
      Selective catalytic reduction (SCR) converters using urea solution as the reduction agent are considered to be a key technology fo...
      ISO - International Organization for Standardization
    • Understanding AdBlue Quality Standards - Atmosfer Machinery
      Oct 11, 2024 — ISO 22241: The International Standard for AdBlue The most widely recognized standard for AdBlue is ISO 22241, which specifies the ...
      Atmosfer Makina
    Show all
    • ISO 22241 | Diesel Exhaust Fluid (AdBlue) Testing | Measurlabs
      ISO 22241 is a testing package for diesel exhaust fluid (DEF). DEF is an additive used in diesel-powered vehicles to help reduce n...
      Measurlabs
    • ISO 22241-1:2019(en), Diesel engines
      Selective catalytic reduction (SCR) converters using urea solution as the reduction agent are considered to be a key technology fo...
      ISO - International Organization for Standardization
    • AdBlue - VDA.de
      With SCR technology, the watery urea solution AdBlue® is introduced into the exhaust gas stream via the injection technology. Ammo...
      Verband der Automobilindustrie e.V. | VDA
    • Understanding AdBlue Quality Standards - Atmosfer Machinery
      Oct 11, 2024 — ISO 22241: The International Standard for AdBlue The most widely recognized standard for AdBlue is ISO 22241, which specifies the ...
      Atmosfer Makina
    • Why ISO 22241 Compliance Matters for AdBlue Production ...
      May 27, 2025 — The goal of ISO 22241 is to maintain the chemical integrity of AdBlue and prevent contamination that can impair SCR systems in die...
      Atmosfer Makina
    • All you need to know about AdBlue Diesel Exhaust Fluid (DEF) ISO22241-2 - LEARN OIL ANALYSIS
      Dec 22, 2022 — ISO 22241-2 is the current standard for AUS32, the chemical name for Adblue. It is mandatory for new Adblue to be tested to the IS...
      Learn Oil Analysis
    • BlueDEF® Diesel Exhaust Fluid - Old World Industries
      BlueDEF® conforms to the ISO-22241-1 specification for DEF, is API registered and meets or exceeds OEM specifications. PEAK® BlueD...
      Old World Industries
    • AdBlue® DEF fluid Urea solution meet ISO22241 standard
      Generally, the storage temperature of urea is related to the storage time of AdBlue® / DEF . To avoid direct sunlight, the optimal...
      Guangzhou EverBlue Technology Co.,Ltd.
    • Understanding ISO Standards in DEF Production - Atmosfer Machinery
      Dec 4, 2024 — ISO 22241: A Closer Look ISO 22241 outlines strict criteria for DEF composition, ensuring a 32.5% concentration of high purity ure...
      Atmosfer Makina
    • ISO 22241-2:2019 - Diesel engines — NOx reduction agent AUS 32 — Part 2: Test methods
      ISO 22241-2:2019 is an international standard that specifies test methods for determining the quality and chemical characteristics...
      ISO - International Organization for Standardization
    • About AdBlue® | What is AdBlue - Grinteco
      The consumption of this fluid depends on the emission, which may total 5%–8% of the overall fuel consumption. As a chemical substa...
      grinteco.com
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    Web results

    ISO 22241-1:2019(en), Diesel engines


    ISO - International Organization for Standardization
    https://www.iso.org › obp
    ISO - International Organization for Standardization
    https://www.iso.org › obp
    This document specifies the quality characteristics of the NOx reduction agent AUS 32 (aqueous urea solution) which is needed to operate selective catalytic ...Read more

    AdBlue® Specifications: ISO 22241


    Crown Oil
    https://www.crownoil.co.uk › fuel-specifications › adblu...
    Crown Oil
    https://www.crownoil.co.uk › fuel-specifications › adblu...
    ISO 22241 specifications: Physical and chemical properties of AdBlue® ; Urea content, % (m/m), 31.8, 33.2 ; Density @ 20ºC, g/cm3, 1.0870, 1.0930 ; Refractive ...Read more
    People also ask
    What is the difference between AdBlue ISO 22241 and ISO 22241 1?
    ISO 22241 is the international standard for Adblue. ISO 22241-1 is the specific part of the standard that specifies the quality characteristics. Basically they are referring to the same ISO standard so are both fine. It's just that one is being a bit more specific about the part of the standard.Jun 23, 2025

    Confused about types of AdBlue : r/drivingUK - Reddit


    Reddit
    https://www.reddit.com › drivingUK › comments › conf...
    Reddit
    https://www.reddit.com › drivingUK › comments › conf...
    What is AdBlue ISO 22241?
    Why is the AdBlue ISO 22241 important? - Fleetmaxx Solutions
    ISO 22241 is the international standard that governs the manufacture, chemical composition, testing, handling and refilling systems for AdBlue (also known chemically as Diesel Exhaust Fluid, or DEF).Nov 28, 2025

    Why is the AdBlue ISO 22241 important? - Fleetmaxx Solutions


    Fleetmaxx Solutions
    https://www.fleetmaxxsolutions.co.uk › news › adblue-is...
    Fleetmaxx Solutions
    https://www.fleetmaxxsolutions.co.uk › news › adblue-is...
    What is ISO 22241 quality standards?
    What is ISO 22241? ISO 22241 is a multi-part international standard developed to ensure the quality and handling of AdBlue (or AUS 32 – Aqueous Urea Solution). It governs every aspect of the DEF lifecycle—from chemical composition to production machinery and storage containers.

    Why ISO 22241 Compliance Matters for AdBlue Production ...


    Atmosfer Makina
    https://atmosfermakina.com › why-iso-22241-complian...
    Atmosfer Makina
    https://atmosfermakina.com › why-iso-22241-complian...
    What is ISO 22241 specified urea solution?
    ISO 22241 is an international standard that specifies the quality characteristics of the NOx reduction agent AUS 32, commonly known as Diesel Exhaust Fluid (DEF). This aqueous urea solution is essential for the operation of selective catalytic reduction (SCR) systems in diesel engines.

    ISO 22241 Diesel Engines — NOx Reduction Agent AUS 32


    Analytik Jena
    https://www.analytik-jena.com › knowledge › standards
    Analytik Jena
    https://www.analytik-jena.com › knowledge › standards

    Web results

    Why ISO 22241 Compliance Matters for AdBlue Production ...


    Atmosfer Makina
    https://atmosfermakina.com › why-iso-22241-complian...
    Atmosfer Makina
    https://atmosfermakina.com › why-iso-22241-complian...
    What is ISO 22241? ISO 22241 is a multi-part international standard developed to ensure the quality and handling of AdBlue (or AUS 32 – Aqueous Urea Solution).Read more

    All you need to know about AdBlue Diesel Exhaust Fluid ...


    Learn Oil Analysis
    https://learnoilanalysis.com › Oil Analysis Articles
    Learn Oil Analysis
    https://learnoilanalysis.com › Oil Analysis Articles
    Dec 22, 2022 — It is mandatory for new Adblue to be tested to the specification to be sold as ISO 22241-2 compliant. Some Adblue manufacturers may choose to ...Read more

    Diesel Exhaust Fluid (AdBlue) Testing - ISO 22241


    Measurlabs
    https://measurlabs.com › products › adblue-testing-iso-...
    Measurlabs
    https://measurlabs.com › products › adblue-testing-iso-...
    This test package for diesel exhaust fluid is used to measure variables from urea content to alkalinity. Results are typically obtained in 3 weeks.
    $371.80 · In stock

    INTERNATIONAL STANDARD ISO 22241-1


    iTeh Standards
    https://cdn.standards.iteh.ai › samples › ISO-2224...
    iTeh Standards
    https://cdn.standards.iteh.ai › samples › ISO-2224...
    PDF
    This document specifies the quality characteristics of the NOx reduction agent AUS 32 (aqueous urea solution) which is needed to operate selective catalytic ...Read more
    9 pages

    ISO 22241 standard AdBlue Diesel exhaust fluid Urea ...


    Guangzhou EverBlue Technology Co.,Ltd.
    http://www.everbluesolution.com › Other products
    Guangzhou EverBlue Technology Co.,Ltd.
    http://www.everbluesolution.com › Other products
    AdBlue is a high purity transparent liquid consisting of 32.5% high purity urea and 67.5% deionized water, with a slight odor of ammonia water.Read more

    Diesel Exhaust Fluid DEF/Adblue Testing / ISO 22241-2


    Mettler Toledo
    https://www.mt.com › ... › Lab-analytical-instruments
    Mettler Toledo
    https://www.mt.com › ... › Lab-analytical-instruments
    Free white paper describing different tests performed in AdBlue®/DEF solutions, following the norm ISO 22241-2.
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    Web results

    AdBlue® | VDA


    Verband der Automobilindustrie e.V. | VDA
    https://www.vda.de › ... › AdBlue®
    Verband der Automobilindustrie e.V. | VDA
    https://www.vda.de › ... › AdBlue®
    The quality of AdBlue® (urea AUS 32) is extremely important for its trouble-free use in motor vehicles, so the requirements are set out in the ISO Standards ...Read more
  • Essential Component Of A...
  • Adblue® Is Already...
  • Adblue® -- Globally...

    • AdBlue analysis ISO 22241 quality control


    TERA Environnement
    https://tera-environnement.com › Home › Air analysis
    TERA Environnement
    https://tera-environnement.com › Home › Air analysis
    AdBlue quality control to ISO 22241-2 is a set of test methods designed to verify the conformity of the urea solution used in diesel vehicles.Read more
    People also search for
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