WHO TobLabNet SOP11 is a new analytical method  and standard operating procedure (SOP) for measuring nicotine, glycerol and propylene glycol in e-liquids.  It is a WHO Global Public Health Good, to support countries  strengthen nicotine and tobacco product regulation and thus the implementation of Articles 9 and 10 of the WHO Framework Convention on Tobacco Control (WHO FCTC).  This is in response to Member States’ request to WHO to provide technical leadership in tobacco product testing.  The SOP operationalizes the recommendation of the WHO Study Group on Tobacco Product Regulation (TobReg).