This buret has a clear acrylic body and leakproof stopcock with a self lubricating PTFE plug. Each buret is individually calibrated for maximum acuracy. Acrylic body is resistant to dilute mimeral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pH's ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1ml.