TPD Testing: What is it?

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What is TPD Testing?


Under the rules of the Tobacco Products Directive, e-liquids and e-cigarettes are required to undergo emissions testing – also known as TPD testing – before they can be placed on the market.

TPD testing involves generating emissions from the candidate product and analysing for specific chemicals and metals at a specialist analytical laboratory under controlled conditions. It is a process that requires bespoke equipment and specially trained lab technicians.

The results of the test are submitted in a notification for assessment by the health authorities such as the MHRA.


How can we help?


TPD testing is one of the many services we offer to our clients. We have helped a variety of e-cigarette companies, from large manufacturers to small retailers/importers get products TPD tested for notification purposes (read a testimonial or case study).

We offer a personalised service which aims to ease the burden and cost of TPD testing while ensuring the regulatory requirements are met.


About the labs we use


When we arrange testing on behalf of our clients we only use selected labs that meet specific criteria, which include:

  • accreditation
  • well established and experienced in analytical testing
  • independent of the e-cigarette industry (to mitigate competing interests)
  • specially trained staff
  • quality test report write-up


The TPD test report


The TPD test report from the lab will include the emissions (name and quantity) and the test method used for submission in the notification.

Some examples of the reported emissions include the aldehydes: acrolein, acetaldehyde, formaldehyde and metals: aluminium, chromium, cadmium, tin, and mercury.

In addition, an indication of the nicotine dose consistency of the product is reported.

The method of the test that was used must also be submitted in the notification (the write-up of the method should contain enough information for the authorities to be able to replicate the method).

Our labs typically use the following equipment in the analysis:

  • High performance liquid chromatography – to detect aldehydes
  • Inductively coupled plasma / mass spectrometry – to quantify metals
  • Gas chromatography with mass spectrometry – for nicotine analysis


Tests on the liquid


We also offer standard testing on the liquid (non-emissions testing), when required. Contact us for more information.

“Without a doubt, they are an invaluable source of regulatory information. We always make time to hear what they have to say.”

Managing Director (UK Manufacturer/Distributor)