13mm Closed-top Screw Black Cap with nature PTFE/nature Silicone Septa

Research Applications

• Available in multiple screw thread sizes and capacities, including ND13 (4 mL), ND15 (8 mL and 12 mL), and ND24 (20 mL, 30 mL, and 40 mL) to meet diverse sample storage requirements.
• Closed-top caps are recommended for long-term storage, while open-top caps are better suited for sampling applications.
• Made of USP Type I borosilicate glass with low metal ion leaching to ensure high sample purity.
• Storage vials ranging from 4 mL to 40 mL, offering a safe and convenient solution for laboratory sample storage.
• 40 mL vials are widely used for sample storage, especially 40 mL amber glass vials for environmental onsite collection and light-sensitive samples.