With Schellbach stripe. The burette is a universal aid in laboratories, electroplating, water treatment stations, sewage treatment plants, field studies, etc.Precise dosing system with push-button, fine titration with micro screw and exact outlet tip, ultrapure drop formation. EX-calibrated With blue ring-barking Automatic zero-point extraction Feet on bottle for enhanced stability Graduation corresponds to Class B (tolerances according to DIN ISO 385) Materials in contact with media: PE, PP, natural rubber and borosilicate glass 3.3. - Please pay attention to the chemical resistance of the materials! Titrating burette according to Dr Schilling Shatter-proof Glass burette with plastic casing increases durability and serves as shatter protection.