DWK Life Sciences DURAN™ Volumetric Flask, Class A, 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)
15210866	DWK Life Sciences 246780159	1 mL
15220866	DWK Life Sciences 246780253	2 mL
15230866	DWK Life Sciences 246780956	5 mL (Wide neck)
15287339	DWK Life Sciences 246781052	10 mL (Wide neck)
15250866	DWK Life Sciences 246781258	20 mL
15260866	DWK Life Sciences 246781455	25 mL
15270866	DWK Life Sciences 246781755	50 mL
15280866	DWK Life Sciences 246782451	100 mL (Stopper Size 12/21)
15290866	DWK Life Sciences 246782554	100 mL (Stopper Size 14/23)
15200876	DWK Life Sciences 246783259	200 mL
15210876	DWK Life Sciences 246783653	250 mL
15220876	DWK Life Sciences 246784452	500 mL
15230876	DWK Life Sciences 246785457	1000 mL
15240876	DWK Life Sciences 246785551	1000 mL (Wide neck)
15250876	DWK Life Sciences 246786359	2000 mL
15260876	DWK Life Sciences 246787355	5000 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.

• 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 blue print
• With printed ring mark for better visibility
• Influence of undesirable factors is kept to an absolute minimum

Specifications

• Material: Borosilicate Glass (3.3), Polyethylene
• For Use With (Application): Preparation and storage of standard solutions; 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
• Autoclavable: Autoclavable