ULAB Scientific Narrow-Mouth Glass Erlenmeyer Flask Set, 3 Sizes 250ml 500ml 1000ml, 3.3 Borosilicate with Printed Graduation, UEF1022

Please understand that as the glassware are fragile, the damage will occur during the transit. You can do the following options once got broken product. 1.Contact us for refund. ( If the remaining items are enough to use) 2.Contact Amazon for replacement. ( If replacement is required ) ULAB Scientific Narrow-Mouth Glass Erlenmeyer Flask Set, 3 Sizes 250ml 500ml 1000ml Including 1pc of Glass Erleneyer Flask 250ml, 1pc of 500ml and 1pc of 1000ml The set contains three of the most popular Erlenmeyer flask sizes offered by ULAB Scientific. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable white enamel. An extra large marking space is also provided. Component Materials: Type I Class A - 3.3 Borosilicate Glass Attributes: ASTM Reference - E960 Specification for Laboratory Glass Beakers Autoclaving: This product will withstand repeated standard autoclave cycles of 121°C at 15 psi for 5 minutes. Heating / Cooling: This product is designed for heating by hot plate, flame, oven, microwave or heating mantles. In normal service it can be heated many times to 230°C. It can be heated one time to 490°C in extreme service. This product can be cooled to -230°C. DO NOT plunge product directly into a liquid coolant. Place the product in the vapor phase of the liquified gasses for slow cooling prior to immersion in the coolant. Vacuum / Pressure: This product is not designed for and is not rated for vacuum or pressure applications. Sterilization: Shipped Not Sterile After-Sales Service: ULAB Scientific guarantees that no sale is complete unless the customer is satisfied. If you have any questions or suggestions on our products or service, please do feel free to contact us. You'll get our reply within 24 hours. Thanks for your patience.

• 3 Sizes Erlenmeyer flasks 8.5oz 17oz 34oz
• High quality 3.3 Borosilicate glass, Uniform wall thickness
• Extra large marking spot
• Tolerance is approximately +/- 5%
• ASTM Specification E960, Type I requirements