Built with thicker walls for enhanced mechanical strength, this 250 mL Heavy Duty Erlenmeyer Flask Borosilicate Glass from Globe Scientific meets ASTM E1406 specifications for applications requiring extra durability in vacuum filtration and heavy benchtop use.
For laboratories where standard-wall flasks fail under repeated thermal cycling or mechanical stress, the Globe Scientific 8430250 provides 250 mL capacity with reinforced beaded rims that resist chipping during routine handling.
Manufactured from ASTM E438, Type I, Class A, 3.3 borosilicate glass with uniform wall thickness throughout, this heavy duty flask withstands the physical demands of continuous laboratory operation.
Heavy Duty Erlenmeyer Flask Borosilicate Glass Features and Benefits
- Best For: Mixing, heating, titration, cell culture, and solution preparation in research, clinical, and educational laboratories
- Standard: ASTM E1406, Type I, Class 1 — verified dimensional and volumetric compliance
- Temperature Range: -180°C to 500°C — autoclavable at 121°C for sterilization between uses
- Glass Type: ASTM E438, Type I, Class A, 3.3 borosilicate glass — resists thermal shock and chemical attack from acids, alkalis, and solvents
- Graduations: Dual white enamel metric scale graduations — permanent markings that remain legible after repeated autoclaving cycles
- Rim Design: Reinforced beaded rim reduces chipping risk and extends service life in high-throughput environments
Available Sizes and Pack Quantities
| SKU | Volume | Mouth Type | Pack Size | ASTM Standard |
|---|---|---|---|---|
| 8430250 | 250 mL | Narrow Mouth | Box of 6 | ASTM E1406 |
| 8430250 | 250 mL | Narrow Mouth | Case of 18 | ASTM E1406 |
Laboratory Applications
- Preparing and storing chemical solutions, buffers, and reagents in analytical chemistry workflows
- Performing titration experiments where the conical shape minimizes splashing during endpoint detection
- Culturing bacteria, yeast, and mammalian cells on orbital shakers in microbiology and biotech laboratories
- Heating and evaporating solvents on hot plates or over open flames with uniform heat distribution
- Mixing and dissolving solid reagents into liquid media for sample preparation and quality control testing
Quality Assurance and Compliance
Globe Scientific manufactures Globe Glass laboratory glassware under ISO 9001:2015 certified quality systems with in-house calibration performed in an ISO 17025 certified laboratory. Each 250 mL flask is produced on computer-controlled automated lines that ensure consistent wall thickness, flat bottoms free of striations, and precise rim forming. Permanent white enamel markings meet ASTM compliance requirements for graduation accuracy.
GlassGuard packaging — a heavy-duty, multi-layered corrugated container system — protects every shipment from damage during transit. Each box undergoes testing protocols that simulate the rigors of small parcel shipping environments.
Erlenmeyer Flask Comparison: Why Choose Globe Scientific?
| Feature | Globe Scientific 8430250 | Typical Competitor |
|---|---|---|
| Glass Type | ASTM E438, Type I, Class A, 3.3 Borosilicate | Borosilicate (grade often unlisted) |
| ASTM Standard | ASTM E1406 | Often unlisted or unverified |
| Pricing | Below retail pricing | Full retail |
| Ships From | USA inventory | Varies |
| Authorized Dealer | Yes — LabSupplies.com | Often third-party reseller |
Volume Discounts and Institutional Pricing
LabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.
Frequently Asked Questions
What is a 250 mL Erlenmeyer flask used for?
A 250 mL Erlenmeyer flask is used for mixing, heating, and storing chemical solutions in laboratory settings. The conical shape reduces splashing during swirling and allows attachment of stoppers or caps for sealed reactions. Researchers in chemistry, biology, and pharmaceutical labs rely on this size for titrations, media preparation, and cell culture work.
Can borosilicate Erlenmeyer flasks be autoclaved?
Yes, Globe Scientific borosilicate glass Erlenmeyer flasks can be autoclaved at 121°C and 15 psi. The 3.3 borosilicate composition withstands repeated thermal cycling between -180°C and 500°C without cracking.
What sizes of Erlenmeyer flasks does LabSupplies.com carry?
LabSupplies.com stocks Globe Scientific Erlenmeyer flasks in 25 mL, 50 mL, 125 mL, 250 mL, 300 mL, 500 mL, 1000 mL, and 2000 mL sizes. Narrow mouth, wide mouth, screw cap, and heavy duty configurations are available.