Molded-in ribs allow vapors to escape during boiling to eliminate pressure buildup. Meets EPA requirements for methods 3005, 3010, 3020.
| Sigma-Aldrich | |
|---|---|
| Product Category | Watch Glasses |
| Product Number | CLS9990100 |
| Product Name | Pyrex®Ribbed Watch Glass |
| Diameter | 100 mm (3.94 inch) |
