AdBlue AUS32 specification and normative DIN and ISO

AdBlue® specifications

In the beginning AdBlue® (that can be also called "AUS32", Aqueous Urea Solution 32.5%) must respect some standards: DIN 70070 (quality standard) and DIN 70071 (analytical standard). DIN è means "Deutsches Institut fur Normung".

At the moment the used standard for AdBlue® è is ISO 22241 2008/9. This is composed by:

ISO 22241-1 Quality requirements, specifies the quality characteristics of AdBlue needed to operate the SCR system on your vehicle. It is a final, published International Standard.

ISO 22241-2 Test methods, specifies test methods required for determination of the quality characteristics of AdBlue. It is also a published International Standard.

ISO/DIS 22241-3 Handling, transportation and storing, describes how to deal with AdBlue in practice and in its content is much like the CEFIC Quality Assurance Guidance Document.

ISO/DIS 22241-4 ISO/DIS 22241-4 Refilling interface, describes elements pertaining to refilling components.

Last two ISO are a 'Draft Industrial Standard', and will be published soon.

To assure a good working of AdBlue® storage and dispensing systems and of vehicles with SCR system, it's very important to use only AdBlue® products that match with ISO standards.