Volumetric Flask

Volumetric Flask with Ground Glass Stopper
Product Type: Laboratory volumetric glassware
Material: Clear borosilicate laboratory glass
CAS No.: Not applicable (finished laboratory apparatus)

Category: Measuring / analytical glassware

Product Description:
Volumetric flasks are precision laboratory vessels used for preparing standard solutions and making accurate dilutions to a fixed volume.

Typical supplier-grade versions are manufactured from borosilicate glass, calibrated to contain (TC / In) at 20°C, and produced to ISO 1042 / DIN 12664 dimensional and accuracy standards for analytical use. Comparable market references from DWK DURAN, Fisherbrand, BRAND, and MilliporeSigma show this format as standard for routine chemistry, QC, research, and educational laboratories.

Key Properties:
Narrow neck with single calibration mark for precise volume setting
Ground glass stopper for secure closure
Clear body for easy meniscus reading
Chemically resistant borosilicate construction in typical supplier-grade versions
Designed for accurate volumetric preparation rather than heating or rough mixing

Typical Specifications (supplier-benchmarked):
Reference temperature: 20°C
Calibration: TC / “In”
Accuracy class: commonly Class A in comparable products
Standard: ISO 1042; many listings also reference DIN 12664
Material benchmark: borosilicate glass 3.3 in major catalog references

Sizes shown in the provided image:
5 mL — diameter 24 mm — height 80 mm
10 mL — diameter 28 mm — height 87 mm
20 mL — diameter 36 mm — height 106 mm
25 mL — diameter 39 mm — height 107 mm
50 mL — diameter 47 mm — height 140 mm
100 mL — diameter 59 mm — height 175 mm
200 mL — diameter 75 mm — height 215 mm
250 mL — diameter 80 mm — height 220 mm
500 mL — diameter 100 mm — height 280 mm
1000 mL — diameter 124 mm — height 325 mm
2000 mL — diameter 159 mm — height 385 mm