DURAN® Volumetric Flask, Class A, Amber, Individual Certificate, With Etched Graduation Mark And Ergonomic Polyethylene Stopper, 20ml, DWK Life Science (CAT#: STEM-FB-1304-LC)

DURAN® Volumetric Flask, Class A, Amber, Individual Certificate manufactured by DWK Life Science is made from borosilicate glass 3.3 and supplied with ergonomic polyethylene stopper for easy and safe tightening or removal. The Volumetric Flask features etchted graduation mark for highly accurate determination and measurements of volume. The durable and chemically resistant amber external colouration provides UV protection. This volumetric flask is numbered individually and supplied with an individual certificate. The individual number is permanently laser-etched onto the base of the volumetric flask and is entered on the corresponding certificate. The volume measured for the corresponding volumetric flask, the measurement uncertainty and the day of issue are documented on this certificate.

Capacity (mL): 20
Diameter d (mm): 39
Height h (mm): 110
Stopper Size: 10/19
Tolerance (mL): +/- 0.04
Quantity: 2

Complies with ISO 1042
The only external application of the colour ensures that internal surfaces have standard DURAN® glass properties
Calibration based on the poured in volume (“In”) at a + 20 °C reference temperature
The volume content tolerances conform to accuracy Class A
Fired-on, highly durable white print