Reinforced bead at top 300 mL and larger sizes have tooled necks 10 and 30 mL sizes are designed from ASTM Specification E 147; 100 mL through 800 mL sizes are designed from ASTM Specification E 1377, Type 1 requirements.

Designed from ASTM E 960 Type III 100 mL size graduated in 10 mL intervals; 200, 300 and 400 mL sizes in 25 mL intervals; 500, 600 and 1,000 mL sizes in 50 mL intervals.