At WearCheck, we’re thrilled to share some exciting news—our Water division has become the first laboratory in Africa to achieve ISO17025 accreditation for testing AdBlue®/DEF (Diesel Exhaust Fluid)! This certification, granted by the South African National Accreditation System (SANAS), is a major milestone that reinforces our commitment to quality and precision.
Why Is Accreditation Important?
Accreditation isn’t just a fancy certificate on the wall—it’s proof that a laboratory meets strict international standards. With this new ISO17025 accreditation, WearCheck can now officially test AdBlue®/DEF to ensure manufacturers meet the ISO 22241 requirements. This is essential for AdBlue® producers, fleet managers, fuel depots, and original equipment manufacturers (OEMs) who rely on high-quality DEF to keep their diesel engines running cleanly and efficiently.
What Is AdBlue® and Why Does It Matter?
AdBlue® (also known as DEF) is a key player in reducing vehicle emissions. It’s a non-toxic, colorless liquid made of 32.5% high-purity urea and de-mineralized water. When injected into the exhaust system of vehicles with Selective Catalytic Reduction (SCR) technology, it helps break down harmful nitrogen oxides (NOx) into harmless nitrogen and water vapor. The result? Cleaner emissions and a healthier environment.
The Science Behind AdBlue®
Vehicles with SCR technology have a separate AdBlue® tank, which feeds the fluid into the exhaust stream. When heated, AdBlue® decomposes into ammonia and carbon dioxide. This ammonia reacts with NOx in the catalyst, converting it into nitrogen and water—substantially reducing air pollution. But for this process to work efficiently, AdBlue® must be produced to exacting ISO 22241 standards, ensuring it doesn’t harm engines or emission systems.
How WearCheck Ensures AdBlue® Quality
At our Johannesburg laboratory, we conduct a range of tests to verify AdBlue® quality, including:
- Titrimetric Testing: Checking alkalinity levels.
- Gravimetric Testing: Identifying insoluble matter.
- Colorimetric Testing: Measuring biuret and aldehyde content.
- Ionisation Testing: Detecting metal contamination.
We’ve also invested in a state-of-the-art refractometer to enhance our testing capabilities. And soon, we’ll be expanding this service to our Cape Town laboratory!
How to Take a Proper AdBlue® Sample
- To get an accurate test result, sampling must be done correctly. Here are some tips:
- Use only high-density polyethylene (HDPE) or stainless steel containers.
- Ensure containers are free from chemical residues—rinse them with distilled or deionized water before use.
- Take a representative sample—avoid areas with sediment or contamination.
- Flush the sampling point by allowing a few liters to flow out before collecting the sample.
- Seal and label the container properly, then store it in a cool, dry place until testing.
Need Your AdBlue® Tested?
If you manufacture, distribute, or rely on AdBlue®, WearCheck’s analysis services ensure that your product meets ISO 22241 standards. Contact us today to learn more!
Visit: www.wearcheck.co.za / Call: (021) 001 2100/ Email: This email address is being protected from spambots. You need JavaScript enabled to view it..
Stay ahead with WearCheck—your trusted partner in fluid analysis!