DURAN® Flat Bottom Flask, NS 24/29, 250 mL

with standard ground joint
  • Complies with DIN ISO 4797
  • Manufactured from 3.3 expansion borosilicate glass
  • The flat base means the flasks can stand upright without the need for a supporting ring
  • Tight closure due to standard ground joint
  • Fired-on, highly durable white print
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Product Overview
Flat bottom flasks are similar in shape to round bottom flasks but have a flattened bottom to allow them to stand upright without requiring the use of a support ring. The standard ground joint allows a precise connection to other ground joint components such as colndensers, adapters, etc. Because of their shape, flat bottom flasks are not suitable for use under either a positive or negative pressure. Flat bottom flasks have a flattened bottom to allow the flasks to stand upright on their own. They are not suitable for use under a vacuum or positive pressure.

Specifications

Specifications
article number I (SAP No) 241713609
Cat. No. 241713609
remarks Non-DIN/ISO size.
Diameter d (mm) 85
h (mm) 130
Description Flat bottom flasks are similar in shape to round bottom flasks but have a flattened bottom to allow them to stand upright without requiring the use of a support ring. The standard ground joint allows a precise connection to other ground joint components such as colndensers, adapters, etc. Because of their shape, flat bottom flasks are not suitable for use under either a positive or negative pressure. Flat bottom flasks have a flattened bottom to allow the flasks to stand upright on their own. They are not suitable for use under a vacuum or positive pressure.
Capacity (mL) 250
Diameter (mm) 85
Nominal Size (NS) 24/29
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
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) 130
Autoclavable Yes
Quantity 10
Product Overview
Flat bottom flasks are similar in shape to round bottom flasks but have a flattened bottom to allow them to stand upright without requiring the use of a support ring. The standard ground joint allows a precise connection to other ground joint components such as colndensers, adapters, etc. Because of their shape, flat bottom flasks are not suitable for use under either a positive or negative pressure. Flat bottom flasks have a flattened bottom to allow the flasks to stand upright on their own. They are not suitable for use under a vacuum or positive pressure.

Specifications

Specifications
article number I (SAP No) 241713609
Cat. No. 241713609
remarks Non-DIN/ISO size.
Diameter d (mm) 85
h (mm) 130
Description Flat bottom flasks are similar in shape to round bottom flasks but have a flattened bottom to allow them to stand upright without requiring the use of a support ring. The standard ground joint allows a precise connection to other ground joint components such as colndensers, adapters, etc. Because of their shape, flat bottom flasks are not suitable for use under either a positive or negative pressure. Flat bottom flasks have a flattened bottom to allow the flasks to stand upright on their own. They are not suitable for use under a vacuum or positive pressure.
Capacity (mL) 250
Diameter (mm) 85
Nominal Size (NS) 24/29
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
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) 130
Autoclavable Yes
Quantity 10