DURAN® Dropping Funnel, cylindrical, ground joint and pressure equalisation tube

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DURAN® Dropping Funnel, cylindrical, with scale and ground joint, with pressure equalisation tube, NS 24/29, 250 mL
The dosed addition of solutions, reaction mixtures and/or chemicals is ideally carried out using a dropping funnel. In addition to the standard ground joint, this design contains a pressure equalization tube at the lower end, which avoids both negative and positive pressure in the reaction vessels.
Features and Benefits:

• Complies with DIN ISO 4800
• With pressure equalisation tube, standard ground cone, standard ground stopcock and retaining device
• The rate of supply can be adjusted
• Cylindrical with scale
• Tight closure due to standard ground joint
• Fired-on, highly durable white print
• Easy-to-read scale with graduation marks to estimate the content

Application: Uniform and metered liquid supply to a reaction mixture, Measuring liquid amounts, Dropping funnels with a volume of 250 ml (with socket: 29/32, cone: 24/29) and 500 ml (with socket: 29/32, cone: 24/29) are special sizes and not according to DIN ISO.