DURAN® Volumetric Flask, Class A, Amber, Batch Certificate, With Etched Graduation Mark And Ergonomic Polyethylene Stopper, 20ml, DWK Life Science (CAT#: STEM-FB-1367-LC)

DURAN® Volumetric Flask, Class A, Amber, Batch 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 etched graduation mark for highly accurate determination and measurements of volume. The durable and chemically resistant amber external colouration provides UV protection. This volumetric flask comes with a batch number and is supplied with a batch certificate which documents the mean value obtained from measuring the batch in question, the standard deviation and the day of issue, and it can also be retrieved online.

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.
Outstanding precision during volumetric measurement and high-quality process stability
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