Introducing our 20 ml Class A Borosilicate Volumetric Flask, a precise tool for accurate volumetric measurements. Crafted from high-quality 3.3 borosilicate glass, this flask offers superior chemical durability and can withstand high temperatures and thermal shocks due to its low temperature gradient. It features a single etched graduation mark with a blue print, ensuring precise volume readings. The flask includes a polyethylene (PE) stopper in size 10/19, providing a secure closure. With a height of 90 mm, it offers a compact and convenient size for laboratory use. Additionally, it is autoclavable at 121°C, allowing for efficient sterilization. Complying with ISO 1042 standards, this volumetric flask guarantees accuracy and reliability in scientific applications.
- Class A borosilicate 3.3 volumetric flask
- Includes polyethylene (PE) stopper, size 10/19
- Single etched graduation mark, blue print
- Tolerance ±0.040ml
- 110 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
20ml 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