DURAN® Volumetric Flask, Class A, individual certificate, 250 mL

with printed graduation mark and ergonomic polyethylene stopper
  • Complies with ISO 1042
  • Made from borosilicate glass 3.3
  • 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
  • Calibration based on the poured in volume (“In”) at a + 20 °C reference temperature
  • The volume content tolerances conform to accuracy Class A
  • With printed graduation mark for better visibility
  • Fired-on, highly durable blue print
Product Overview
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 which are numbered individually, are 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. The individual number is a consecutive number and comprises three letters and a four digit number, for example: AAA-0001. 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 item by item and are marked with an individual number.

Specifications

Specifications
Diameter d (mm) 80
Capacity (mL) 250
Diameter (mm) 80
Neck ID (mm) 15.5 +/- 1.5
Marking Area The marking area is a printed ceramic area on laboratory glassware for marking / identification using a wax pencil. Also called marking field, white marking spot or marking square.
Material BORO 3.3, PE
Boro 3.3 Borosilicate glass 3.3 has a very good chemical resistance, virtual inert behavior, a high maximum usage temperature, high light transparency and minimal thermal expansion. Borosilicate glass 3.3 has a linear coefficient of expansion of 3.3 × 10−6 K−1 at
Height (mm) 220
Stopper Size 14/23
Tolerance (mL) +/- 0.15
Autoclavable Yes
Retrace Code This is a lot number printed on the product during the manufacturing process used for identification of the production unit, the production work order and for traceability of the materials used.
Quantity 2
Product Overview
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 which are numbered individually, are 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. The individual number is a consecutive number and comprises three letters and a four digit number, for example: AAA-0001. 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 item by item and are marked with an individual number.

Specifications

Specifications
Diameter d (mm) 80
Capacity (mL) 250
Diameter (mm) 80
Neck ID (mm) 15.5 +/- 1.5
Marking Area The marking area is a printed ceramic area on laboratory glassware for marking / identification using a wax pencil. Also called marking field, white marking spot or marking square.
Material BORO 3.3, PE
Boro 3.3 Borosilicate glass 3.3 has a very good chemical resistance, virtual inert behavior, a high maximum usage temperature, high light transparency and minimal thermal expansion. Borosilicate glass 3.3 has a linear coefficient of expansion of 3.3 × 10−6 K−1 at
Height (mm) 220
Stopper Size 14/23
Tolerance (mL) +/- 0.15
Autoclavable Yes
Retrace Code This is a lot number printed on the product during the manufacturing process used for identification of the production unit, the production work order and for traceability of the materials used.
Quantity 2

Need help with this product?

Our Laboratory equipment specialists are here to help you find the best product for your application. Please call or email us and we will be happy to help you find the right product for the job.