Product Description
A ground-glass stopper gives this 5mL Class A flask a chemically inert seal for solvents and standards that should never touch plastic. It is a dependable choice for precise analytical preparations.
This listing is for PYREX catalog number 5640-5, the 5mL Class A Glass Volumetric Flask, No. 8 Standard Taper Glass Stopper, ±0.02mL Tolerance, sold as a full case of 12 (12/Pack). The flask has a machine-blown body sealed to a heavy-tubing neck tooled for a No. 8 standard taper hollow glass stopper, with a sharp permanent graduation line and large white block lettering. It is made to Class A tolerances (±0.02mL) per ASTM E-694, E-542 and E-288. Sold by the full case of 12. Order by the case from LIGHT LABS to keep your bench stocked.
Key Features
- Glass Standard Taper Stopper – No. 8 hollow PYREX® glass stopper for an all-glass seal
- Class A Accuracy – ±0.02mL tolerance per ASTM E-694, E-542 and E-288
- Strengthened Construction – machine-blown body with heavy-tubing neck
- Easy-Read Inscription – sharp permanent graduation line and large white lettering
- Reusable Glass – heavy-duty flask designed for repeated use
Specifications
| Catalog Number | 5640-5 |
| Brand | PYREX |
| Capacity | 5 mL |
| Flask Shape | Flat bottom |
| Top Style | Standard Taper Stopper |
| Neck Style | Long |
| Stopper Style | Hollow glass |
| Accuracy Class | Class A |
| Feature | Reusable |
| Tolerance | 0.02 mL |
| Standard Taper Stopper No. | 8 |
| Height | 91 mm (approx.) |
| O.D. | 26 mm (approx.) |
| Flask Style | Volumetric |
| Flask Feature | Heavy duty |
| Quantity per Case | 12 |
Applications
- Analytical standard preparation
- Solvent-based solutions
- QC and pharmaceutical testing
- Quantitative dilutions
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Browse all PYREX products at LIGHT LABS.
