KIMAX® flasks have a reinforced bead at the top

·         The 500 and 800 mL sizes have tooled necks to provide an accurate stopper fit and to reduce the possibility of breakage in use

·         The 500 and 800 mL size necks are tooled to take rubber stoppers especially made for Kjeldahl flasks

·         The 10 and 30 mL are designed from ASTM Specification E147 and larger sizes are designed from ASTM Specification E1377, Type I requirements

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements