This Burette has a transparent acrylic body and a leakproof stopcock fitted with a self lubricating PTEE plug. Each Burette is individually calibrated to give maximum accuracy. Acrylic body is unaffected by dilute minerals acids & bases except Hydrofloric Acid & Ammonium Hydroxide. The pH range of 1-14 is deal and can be used upto 5% wt/wt of acids or 30% bases.