- Screw cap
- TC calibrated
- Class A tolerances
Pyrex® flasks have an extra heavy-duty glass wall that significantly increases product durability.
The wide funnel-like screw top plus the wide neck design allows for easy filling and mixing of various materials into solution. This extra wide neck also allows access to larger capacity pipets. For added convenience, one size (GL32) of the chemically resistant, high temperature screw caps fits all flasks. This threaded cap has a PTFE liner to provide a secure closure for leakproof solution storage.
An additional extra large volume size is permanently screened onto the flask body for easy volume identification.
These flasks are calibrated "to contain" and designed to meet Class A, ASTM tolerances for volumetrics. Flasks are Lot Traceable with certificates of compliance available.