DURAN 212163605 Narrow Neck Erlenmeyer Flask 250 mL
The DURAN 212163605 is a 250 mL narrow-neck Erlenmeyer flask made from high‐quality DURAN® borosilicate glass 3.3. Its conical shape is well suited for mixing, swirling, and heating. The narrow-neck version reduces splashing and evaporation losses. It features approximate printed graduations for quick volume estimation, and a beaded rim to improve strength and resist chipping. The flask includes a Retrace (batch) Code for traceability and conforms to DIN ISO 1773 / DIN 12385 standards. It is also autoclavable (~121 °C).
Key Specifications
| Parameter | Value |
|---|---|
| Catalogue / Model No. | 212163605 |
| Capacity | 250 mL |
| Material | DURAN® Borosilicate Glass 3.3 |
| Neck Type | Narrow neck with beaded rim |
| Neck Outer Diameter | ~ 34 mm |
| Bottom (Body) Diameter | ~ 85 mm |
| Height | ~ 145 mm |
| Standards | DIN ISO 1773 / DIN 12385 |
| Graduations | Approximate printed graduations for rough volume estimation |
| Retrace / Traceability | Batch/Retrace Code included |
| Autoclavable | Yes (~121 °C) |
Applications
Mixing, heating, and preparing reagents in chemistry, biology, and teaching labs at a 250 mL scale.
Suitable for experiments where approximate volume reading is enough rather than precise volumetric work.
Useful for tasks where reduced evaporation is beneficial due to narrow neck.
Autoclave-compatible for safe sterilization and reuse.
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