This document gives a list of constituents of interest proposed for measurement in the aerosol for the
purpose of regulatory submission under the Directive 2014/40/EU (TPD) [2], for— prefilled products such as disposable e-cigarettes and refill cartridges,— e-liquids sold in refill containers,— the following categories of hardware: coils or other heater elements of the vaping product, atomisers,rebuildable atomisers and all open tank or dripper products with inbuilt atomisers, including clearomisers.