Scharlau automatic burettes are designed to provide automatic dispensing of measured quantities of chemical solutions. These burettes, classified as AS by Dr. Schilling, feature rapid emptying, with the 'A' designation indicating maximum accuracy, and the 'S' indicating quick discharge. The flexible plastic bottle enables fast filling, and the burette includes an automatic zero adjustment for accuracy. Graduated in blue ink with a contrast band or Schellbach stripe (white band with a vertical blue line), these burettes are available in various capacities, including 500 mL and 1000 mL models, and comply with ISO 385 standard for precise, reliable results.