Introducing our Class A Borosilicate 3.3 Volumetric Flask with a capacity of 250ml. This flask is specifically designed for precise volumetric measurements in laboratory applications. It is made from high-quality 3.3 borosilicate glass, ensuring superior chemical durability and resistance to thermal shocks. The flask features a low temperature gradient, allowing it to withstand high temperatures without affecting its accuracy. It comes with a polyethylene (PE) stopper, size 14/23, for secure closure. The single etched graduation mark with blue print makes volume readings easy and precise. With a tolerance of ±0.150ml, this flask provides reliable and accurate results. It stands at a height of 220mm, offering ample space for your volumetric needs. The flask is also autoclavable at 121°C, ensuring efficient sterilization. Complying with ISO 1042 standards, this Class A volumetric flask is a trusted choice for precise volumetric measurements in the laboratory setting.
- Class A borosilicate 3.3 volumetric flask
- Includes polyethylene (PE) stopper, size 14/23
- Single etched graduation mark, blue print
- Tolerance ±0.150ml
- 220 mm Tall
- Low temperature gradient - can withstand high temperatures and thermal shocks*
- Superior chemical durability*
- Autoclavable at 121°C
- ISO 1042
*See specifications tab for temperature and chemical durability information
250ml Volumetric Flask with Polyethylene Stopper, Borosilicate Glass, Class A
Thermal Properties Coefficient of Linear Expansion 32.5 x 10-7 / °C
Strain Point 515°C Annealing Point 565°C Softening Point 820°C Specific Heat 0.2 Thermal Conductivity (Cal/cm3°C/Sec) 0.0027 Chemical Durability Contact Chemical Duration (hours) Loss in weight (mg/m2) Water distilled at 100°C 6 10 Water vapour steam at 121°C 1 75 Acid HCl 6 100 80% H2SO4 at 130°C
12 140 Alkali -1N solution of Na2CO3 boiling
6 4000 Isotonic infusion Fluids NaCl (0.85%) at 121°C 2.5 70 Glucose (5%) at 121°C 2.5 50
