Two solution are being studies by the EU Commission
The EU TPD has imposed the presence of a leak-free filling system for e-cigarette tanks. “Given the toxicity of the nicotine-containing liquids used in electronic cigarettes and refill containers”, the drafters of the Directive deemed “appropriate” to ensure “that electronic cigarettes can be refilled in a manner that minimises the risk of dermal contact or accidental ingestion of such liquids.”
It is the Commission’s responsibility to achieve this objective with the preparation of technical standards.
In the current state of their work, the draft text (.docx) indicates that clearomizers and refill bottles are requested to meet one of two requirements in order to be legally marketed in the European Union.
- First solution: the refill container possesses a non-detachable nozzle at least 1cm long, narrower than and that slots comfortably into the opening of the tank. The flow control mechanism is required to emit no more than 20 drops of refill liquid per minute when placed vertically.
- Second solution: a docking system which only releases refill liquids when the electronic cigarette and refill container are connected.
Finally, refilling instructions, including graphic illustrations, must be provided to consumers. The width of the nozzle and of the clearomizer’s opening must be indicated to allow consumers to identify the compatibility between the bottles and the tanks.
The first solution appears to be in agreement with the work carried out in France by the AFNOR on vaping products. It was proposed, for example, the maximum flow rate of 20 drops per minute and to indicate the external diameter of the refill nozzle.