14/10 Glassware is one of the smaller standards in taper ground joint based lab glassware. 14/10 glassware has a 14mm diameter to its tube and the tapers are 10mm in length. The diameter of the taper is 13.5mm at the narrow end, the grounding zone (where the glass taper is ground) is 10.mm and the joints have a 14.5mm diameter at the top of the ground glass zone.
