These berzelius, tall form, double capacity scale beakers are manufactured with uniform wall thickness, particularly in the critical radius point of the heel area. The result is a strong and durable beaker which exhibits excellent mechanical and thermal shock resistance. Beakers feature a slightly flared top with a thick reinforcing bead. Available with or without a pouring spout. All sizes have a durable matte finish area for clear marking, and easy to read white scales to indicate approximate volumes. Beakers without a pouring spout are designed from ASTM Specification E960, Type IV requirements, beakers with a pouring spout are designed from ASTM Specification E960, Type III Requiremens.