Borosilicate Glass Beakers (Griffin Low Form)
Goel Glass manufactures and supplies precision Borosilicate Glass Beakers engineered in accordance with DIN 12331 and ISO 3819 international standards. Designed for general laboratory, preparative, and pilot-scale industrial applications, our beakers feature uniform wall thickness distribution for superior mechanical strength and thermal shock resistance. Each beaker incorporates an easy-pour flared spout, durable white enamel metric graduations, and a generous marking area for sample identification.
In addition to standard benchtop capacities (100 ml to 3000 ml), Goel Glass specializes in heavy-duty, large-volume glass beakers—including 5,000 ml (5L), 10,000 ml (10L), and 20,000 ml (20L)—specifically engineered with reinforced rim beads and heavy bases for OEM, formulation, and pilot chemical processing.
Griffin Low Form with Spout, Graduated
Compliant with ISO 3819 / DIN 12331. Manufactured from Borosilicate Glass.
| CAPACITY (ML) | APPROX. O.D. (MM) | APPROX. HEIGHT (MM) |
|---|---|---|
| 100 | 50 | 70 |
| 250 | 70 | 95 |
| 500 | 83 | 115 |
| 1000 | 105 | 145 |
| 2000 | 130 | 185 |
| 3000 | 150 | 210 |
| 5000 | 170 | 270 |
| 10000 | 220 | 322 |
| 20000 | 290 | 400 |
Key Engineering Features
- Thermal Shock Resistance: Low coefficient of thermal expansion (3.3 × 10⁻⁶ K⁻¹) improves resistance to thermal shock during laboratory heating cycles (recommended thermal differential ΔT ≤ 100°C–120°C with gradual heating and cooling to avoid thermal stress).
- Chemical Inertness: High chemical resistance conforming to ISO 719 Class HGB 1 (hydrolytic resistance), ISO 1776 Class 1 (acid resistance), and ISO 695 Class A2 (alkali resistance).
- Clean Pouring Spout: Precision-formed drip-free spout design prevents side-dripping during viscous or rapid liquid discharge.
- Fired-on Enamel Markings: High-contrast white metric graduations withstand repetitive autoclaving and industrial cleaning agents.
Frequently Asked Questions
Our Griffin low-form beakers are manufactured strictly in accordance with DIN 12331 and ISO 3819 specifications. These standards govern dimensions, wall thickness tolerances, base flat tolerances, and thermal stability requirements for laboratory glassware.
Yes. Made from Borosilicate Glass, our beakers have a strain point of 515°C and an annealing point of 565°C. For routine bench heating up to 250°C, direct heating on a ceramic or stir-plate is safe. We recommend gradual heating and avoiding sudden temperature differentials (ΔT) exceeding 100°C–120°C.
Yes. Goel Glass specializes in heavy-duty 5L, 10L, and 20L pilot-scale beakers. These vessels feature reinforced wall cross-sections and heavy-duty rims to safely support large batch fluid masses and motorized overhead stirring assemblies without mechanical fatigue.