ขวดรูปชมพู่ปากแคบหลากสี / Narrow Mouth Erlenmeyer Flasks Colorware

·        All flasks have durable, colored, ceramic enamel scales to indicate approximate volumes at various levels

·      Tops are reinforced and tooled with a rounded finish, containing more glass to give them maximum mechanical strength

·      Body is thick-walled, with a long tapered outside contour to minimize chipping when struck or rubbed together

·        Designed from ASTM Specification E1404, Type I, Class I requirements

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