• Complies with ASTM Specification E960, Type I requirements
• Manufactured from borosilicate glass 3.3
• Thick, slightly flared, beaded top, with a spout designed to have excellent pouring characteristics
• Improved mechanical and thermal properties result from the uniform sidewall and bottom thickness design
• Suitable for use on a hotplate
• All sizes have a durable marking patch for use with an ordinary pencil
• Easy-to-read white graduations on all sizes from 20 to 4000 mL
• Ref: ASTM Method D2070