DWK Life Sciences DURAN™ Volumetric Flask, Class A, amber, batch certificate

DURAN™ volumetric flasks are used for the accurate measurement of specific quantities of liquids. They are volumetric analysis aids in quantitative laboratory work. These volumetric flasks are certified by batch.

Product Code	Brand	Capacity (Metric)
15230896	DWK Life Sciences 246760954	5 mL (Wide neck)
15240896	DWK Life Sciences 246761059	10 mL (Wide neck)
15250896	DWK Life Sciences 246761256	20 mL
15260896	DWK Life Sciences 246761453	25 mL
15270896	DWK Life Sciences 246761753	50 mL
15280896	DWK Life Sciences 246762458	100 mL (Stopper Size 12/21)
15290896	DWK Life Sciences 246762552	100 mL (Stopper Size 14/23)
15200906	DWK Life Sciences 246763257	200 mL
15210906	DWK Life Sciences 246763651	250 mL
15220906	DWK Life Sciences 246764459	500 mL
15230906	DWK Life Sciences 246765455	1000 mL
15240906	DWK Life Sciences 246766357	2000 mL

Description

Volumetric flasks are available in two different accuracy Classes: Class A and Class B. The two Classes differ in the accuracy of measurement with Class A being the highest accuracy, and Class B is approximately half that of Class A. The volumetric flasks with accuracy Class A have a blue print for clear glass products and a white print for amber versions. Volumetric flasks with a batch number and accuracy Class A are supplied with a batch certificate. This certificate documents the mean value obtained from measuring the batch in question, the standard deviation and the day of issue. The batch certificates can also be retrieved online. The batch number consists of four digits. The first two numbers specify the production year, and the following two numbers specify the batch, e.g.: 18.01.

• UV protection due to external colouration
• The only external application of the colour ensures that internal surfaces have standard DURAN™ glass properties
• Very durable and chemically resistant amber colour
• Calibration based on the poured in volume (In) at a + 20°C reference temperature
• Outstanding precision during volumetric measurement and high-quality process stability
• Thanks to the exact processing and precisely calibrated scales, they permit the highly accurate determination and measurements of volume
• Supplied with ergonomic polyethylene stopper for easy and safe tightening or removal
• The volume content tolerances conform to accuracy Class A
• Fired-on, highly durable white print

Specifications

• Material: Borosilicate Glass (3.3), Polyethylene
• For Use With (Application): Storage and transport of light-sensitive materials; Measuring liquid amounts; Diluting solutions; Mixing several components; Measurement analysis; Volumetric measurement; To ensure a long service life for your volumetric glassware and to exclude possible volume changes, these glass products should not be heated above + 250°C in drying cabinets or sterilisers
• No. per Pack: 2/Pk.
• Autoclavable: Autoclavable