Flasks - Conical Erlenmeyer with Narrow Neck and Interchangeable Joint, ASTM 250ml 19/22

• Conical Erlenmeyer flask with standard ground joint
• Made from high quality borosilicate 3.3 glass conforming to USP Type-1 and ASTM E438, Type-1, Class-A requirements
• Excellent chemical resistance
• Mechanically strong with low temperature gradient
• Uniform wall thickness ideal for heating
• Conical shape for thorough mixing
• Easy to read dual white enamel graduations
• Graduated to indicate approximate volume
• Autoclavable at 121 C