Material PMMA/TPX. This Labglass Burette has a transparent acrylic body and a leak proof stopcock fitted with self lubricating PTFE plug. Calibrated to give maximum accuracy. Acrylic body is unaffected by dilute mineral acids & bases except Hydrofluoric Acid & Ammonium Hydroxide. A pH range 1-14 is ideal and can be used up to 5% wt/ wt of acids or 30% bases. Constructed from acrylic giving strength and transparency. Interchangeable stopper. Plastic. 25ml x 0.1. Blue graduations.