PYREX® Volumetric Flask, Class A, works certified, USP/ISO/DIN tolerances
- Complies with ISO 1042 and DIN 12664
- Manufactured from borosilicate glass 3.3
- Calibrated to the tolerances required by the United States Pharmacopoeia (USP) which are tighter than those of ISO/DIN standards
- Each flask engraved with individual serial number and supplied with certificate of calibration traceable to National standards
- White enamel inscriptions
- With Polyethylene stopper
- 20mL and 5000mL sizes are supplementary to DIN range.
Products

| Catalog No | Capacity (mL) | Diameter (mm) | Height (mm) | Stopper Size | Tolerance (mL) | Quantity | |
|---|---|---|---|---|---|---|---|
| 3151/01WC | 1 | 13 | 65 | 7/16 | ± 0.020 | 5 | Find a distributor |
| 3151/02WC | 2 | 17 | 65 | 7/16 | ± 0.020 | 5 | Find a distributor |
| 3151/04WC | 5 | 22 | 70 | 10/19 | ± 0.020 | 5 | Find a distributor |
| 3151/06WC | 10 | 27 | 90 | 10/19 | ± 0.020 | 5 | Find a distributor |
| 3151/08WC | 20 | 39 | 110 | 10/19 | ± 0.03 | 5 | Find a distributor |
| 3151/10WC | 25 | 40 | 110 | 10/19 | ± 0.03 | 5 | Find a distributor |
| 3151/12WC | 50 | 50 | 140 | 12/21 | ± 0.05 | 5 | Find a distributor |
| 3151/14WC | 100 | 60 | 170 | 14/23 | ± 0.08 | 5 | Find a distributor |
| 3151/16WC | 200 | 75 | 210 | 14/23 | ± 0.10 | 5 | Find a distributor |
| 3151/18WC | 250 | 80 | 220 | 14/23 | ± 0.12 | 2 | Find a distributor |
| 3151/20WC | 500 | 100 | 260 | 19/26 | ± 0.20 | 2 | Find a distributor |
| 3151/22WC | 1000 | 125 | 300 | 24/29 | ± 0.30 | 2 | Find a distributor |
| 3151/24WC | 2000 | 160 | 370 | 29/32 | ± 0.50 | 1 | Find a distributor |
| 3151/26WC | 5000 | 215 | 475 | 34/35 | ± 1.00 | 1 | Find a distributor |
Specifications
Product specifications are found on the product detail pages. Click on the product catalog number in the table above to view the individual product specifications.
Product Overview
Calibrated to Class A tolerances and complying to USP, ISO and DIN standards, these volumetric flasks are precision measuring instruments. Each flask is supplied with an individual calibration certificate for complete traceability.
Products
Products

| Catalog No | Capacity (mL) | Diameter (mm) | Height (mm) | Stopper Size | Tolerance (mL) | Quantity | |
|---|---|---|---|---|---|---|---|
| 3151/01WC | 1 | 13 | 65 | 7/16 | ± 0.020 | 5 | Find a distributor |
| 3151/02WC | 2 | 17 | 65 | 7/16 | ± 0.020 | 5 | Find a distributor |
| 3151/04WC | 5 | 22 | 70 | 10/19 | ± 0.020 | 5 | Find a distributor |
| 3151/06WC | 10 | 27 | 90 | 10/19 | ± 0.020 | 5 | Find a distributor |
| 3151/08WC | 20 | 39 | 110 | 10/19 | ± 0.03 | 5 | Find a distributor |
| 3151/10WC | 25 | 40 | 110 | 10/19 | ± 0.03 | 5 | Find a distributor |
| 3151/12WC | 50 | 50 | 140 | 12/21 | ± 0.05 | 5 | Find a distributor |
| 3151/14WC | 100 | 60 | 170 | 14/23 | ± 0.08 | 5 | Find a distributor |
| 3151/16WC | 200 | 75 | 210 | 14/23 | ± 0.10 | 5 | Find a distributor |
| 3151/18WC | 250 | 80 | 220 | 14/23 | ± 0.12 | 2 | Find a distributor |
| 3151/20WC | 500 | 100 | 260 | 19/26 | ± 0.20 | 2 | Find a distributor |
| 3151/22WC | 1000 | 125 | 300 | 24/29 | ± 0.30 | 2 | Find a distributor |
| 3151/24WC | 2000 | 160 | 370 | 29/32 | ± 0.50 | 1 | Find a distributor |
| 3151/26WC | 5000 | 215 | 475 | 34/35 | ± 1.00 | 1 | Find a distributor |
Specification
Specifications
Product specifications are found on the product detail pages. Click on the product catalog number in the table above to view the individual product specifications.
Product Overview
Product Overview
Calibrated to Class A tolerances and complying to USP, ISO and DIN standards, these volumetric flasks are precision measuring instruments. Each flask is supplied with an individual calibration certificate for complete traceability.
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