Special gases for the type approval of engines - Westfalen AG (PLC)

For type approval and emission measurement of engines: Specidur® operating gases from Westfalen.

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Service gases for vehicle type approval: with guaranteed gas quality and purity.

Are you concerned with the type approval of light cars (passenger cars) and commercial vehicles (commercial vehicles) according to EU Regulation 2017/1151? Do you need operating gases for emission measurement? We have the right products for you!

With our Specidur® purity gases and gas mixtures, you get guaranteed gas quality, gas purity and conformity to all current regulations. You can order our cylinders with hydrogen helium (H2/He), nitrogen and synthetic air quickly and easily in our online shop. On request, we can also verify and document the quality of entire batches.

Less time and costs: Your advantages at a glance.

  • Compliance with all relevant EU regulations and a US standard.
  • Fast availability: Products are kept in stock and can be called up at any time.
  • No time-consuming testing: thanks to product specifications on the cylinder, fulfilled requirements can be seen at a glance.
  • No second measurements thanks to guaranteed gas quality, gas purity and conformity to all current laws.
  • Guaranteed measurement success and optimised time requirement for new type approvals.

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More product details or order now?

All details on Specidur® clean gases and gas mixtures as well as our delivery forms can be found in our online shop.

Overview: Our Specidur® operating gases for emission measurement comply with these regulations.

  • Regulation (EU) 2017/1151 for reference gases (UN/ECE Regulation No 83).
  • Regulation (EU) 2017/654 for diluted exhaust gas.
  • Regulation (EU) 582/2011 for raw and diluted exhaust gas (UN/ECE Regulation No 49).
  • US Standard CFR § 1065.750.

FAQs: Frequently asked questions and our answers.

Where can I find product and safety data sheets?

Our product and safety data sheets are available for you in our online shop. Search and navigation also work without logging in. You will find the files at the respective product under "Downloads".

In which cylinders does Westfalen offer operating gas for the type approval of vehicles?

You can find an overview of the available container sizes in our online shop. Search and navigation also work without logging in. The information can be found on the respective product under "Delivery forms".

Does Westfalen also offer accessories for the use of service gas for the type approval of vehicles?

Yes, we can also supply you with equipment for transport, gas extraction and safety - e.g. pressure regulators and connections. Our experts will be happy to advise you!

Can I order operating gas for vehicle type approval online?

Our standard gas mixtures, such as our gas products for calibrating gas sensors, test gases for AU devices or operating gases for emission measurement, are available with just a few clicks via our online shop.
For individual customer mixtures, please contact us personally - we look forward to hearing from you! After your initial order, you can also place repeat orders for your customised products via the online shop.

Small containers of Alumini® for mobile use or small quantities.

The economical and practical alternative to the supply with classic, large high-pressure containers.

To the Alumini® series

Test gases for exhaust gas measuring instruments.

Learn more about our test gases with calibration certificate for exhaust gas measuring devices. Certified according to DIN ISO/EC 17025 and thus permitted for AU measuring devices and exhaust gas testing.

Test gases for exhaust gas measuring instruments

Calibration gases according to ISO 17025 and 17034.

Westfalen offers a wide range of calibration gases according to ISO 17025 and 17034: custom-made or as a ready-made mixture.

Calibration gases and test gases