DWK Duran 250 mL Volumetric Flask, Class A, Blue Graduation, Individual Certificate, Polyethylene Stopper NS 14/23​

The DWK Duran 250 mL volumetric flask is precision-crafted from high-quality borosilicate glass 3.3, ensuring exceptional durability and chemical resistance. Designed to comply with ISO 1042 standards, this Class A flask features a blue printed graduation mark for clear visibility and precise measurement. Each flask is individually certified, with a unique identification number laser-etched onto the base, corresponding to its certificate. Equipped with an ergonomic polyethylene stopper (NS 14/23), it provides a secure seal and facilitates easy handling, making it ideal for accurate preparation and storage of standard solutions in laboratory settings.

Key Features:

• Brand: DWK Duran
• Material: Borosilicate glass 3.3 for high durability and chemical resistance
• Accuracy: Class A, complying with ISO 1042 standards
• Graduation: Blue printed graduation mark for enhanced visibility
• Certification: Individually certified with a unique identification number
• Stopper: Ergonomic polyethylene stopper (NS 14/23) for secure sealing and easy handling
• Application: Ideal for accurate preparation and storage of standard solutions

This volumetric flask is an essential tool for laboratories requiring precise volume measurements and high-quality glassware for analytical applications.