Borosilicate 3.3 glass, class AS.

• High chemical and thermal resistance
• Schellbach stripe for accurate meniscus reading
• Detachable and interchangeable PTFE stopcock
• High contrast blue enamel graduations
• Batch certificate included

No breakage in case of improper handling because the stopcock is not directly connected with the body of the burette. Fast to dismantle, easy to clean and simple to repair because all individual components are replaceable.