Description
The Class A Amber Volumetric Flask with Hollow Glass Stopper from Osmosis Scientific is premium laboratory glassware engineered for the most accurate volumetric measurements and solution preparations in analytical, pharmaceutical, academic, and quality control laboratories.
Made from high-grade Boro 3.3 borosilicate glass, this flask offers outstanding thermal shock resistance and chemical durability. The amber tint provides effective protection against harmful UV and visible light, making it ideal for handling light-sensitive standards and reagents.
Each flask is Class A calibrated with a single etched calibration line that ensures traceable accuracy for precise volumetric work. An individual calibration certificate accompanies every flask to support quality documentation and compliance. The included hollow glass stopper provides secure closure during solution preparation or storage, minimizing evaporation and contamination.
Available in capacities from 10 ml to 2000 ml, the flask covers a broad range of laboratory volume requirements — from micro solution standardization to larger batch preparations. Its stable flat base ensures safe placement on benches during everyday lab use.
| Capacity (mL) | N/S | Tolerance (± mL) | Pack of | SKU | Enquiry |
|---|---|---|---|---|---|
| 5 | 10/19 | 0.040 | 1 | AVF-HGS-0005-1019 | Enquire Now |
| 10 | 10/19 | 0.040 | 1 | AVF-HGS-0010-1019 | Enquire Now |
| 20 | 10/19 | 0.040 | 1 | AVF-HGS-0020-1019 | Enquire Now |
| 25 | 10/19 | 0.040 | 1 | AVF-HGS-0025-1019 | Enquire Now |
| 50 | 12/21 | 0.060 | 1 | AVF-HGS-0050-1221 | Enquire Now |
| 50 | 14/23 | 0.100 | 1 | AVF-HGS-0050-1423 | Enquire Now |
| 100 | 12/21 | 0.100 | 1 | AVF-HGS-0100-1221 | Enquire Now |
| 100 | 14/23 | 0.100 | 1 | AVF-HGS-0100-1423 | Enquire Now |
| 200 | 14/23 | 0.150 | 1 | AVF-HGS-0200-1423 | Enquire Now |
| 250 | 14/23 | 0.150 | 1 | AVF-HGS-0250-1423 | Enquire Now |
| 500 | 19/26 | 0.250 | 1 | AVF-HGS-0500-1926 | Enquire Now |
| 1000 | 24/29 | 0.400 | 1 | AVF-HGS-1000-2429 | Enquire Now |
| 2000 | 29/32 | 0.600 | 1 | AVF-HGS-2000-2932 | Enquire Now |
| 5000 | 34/35 | 1.200 | 1 | AVF-HGS-5000-3435 | Enquire Now |
Frequently Asked Questions (FAQs)
Amber glass blocks approximately 90% of UV light and visible wavelengths below 500 nm, preventing photodegradation of sensitive reagents, pharmaceuticals, vitamin solutions and analytical standards during storage.
Hollow glass stoppers are chemically inert, have minimal permeability, match the flask’s borosilicate composition, reduce contamination risk and evaporation, and are ideal for long‑term storage of corrosive or reactive solutions.
Osmosis offers amber volumetric flasks from 5 mL to 2000 mL with corresponding NS ground‑glass joints (10/19, 12/21, 14/23, 19/26, 24/29, 29/32) for micro to large‑scale applications.
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