Borosilicate 3.3 glass, clear.
Wide neck, with beaded rim.
Very good chemical resistance.
High temperature resistance.
Minimal thermal expansion, giving relatively high resistance to temperature changes.
An economical alternative for a wide range of laboratory applications. Flasks have flared rim with markings for approximate volume graduations and a white labelling area.
Certifications: ISO 1773 (narrow neck), DIN ISO 24450 (wide neck).