Bottle Material: High Borosilicate Glass; Cap Material: Plastic; Septa Material: PTFE, Silicone; Septa Color: Red, White; Bottle Color: Transparent; Cap Color: Blue; Capacity: 2mL; Bottle Mouth Outer Diameter: 9.3mm / 0.4 inch; Bottle Size: 25.5 x 11.6mm / 1 x 0.5 inch (H * OD); Total Height: 34mm / 1.3 inch; Advantage: HPLC vials have heat resistance and high chemical resistance and are suitable for accommodating reagents with acidic, neutral, and alkaline pH values. Lab vials feature a screw design that ensures a consistent seal. Silicone septa and PTFE provide an evaporation-tight seal for compound sample storage in the chemical industry and research laboratories. Instruction: Twist off the cap, pour the liquid into the bottle, and close the cap at . This vial has white printed graduations and a large writing area for sample identification or labeling. Our HPLC vials are suitable for common autosampler. Application: Lab vial is suitable for HPLC, , LC/MS applications, and high-throughput analysis for reliable results. Sample vials can be used on all common automatic stamper for thin-neck bottles. The vials come with pre-slit septa that allow for easy needle penetration and sample extraction without the need for additional tools or equipment. Note: Please check the size carefully before purchasing. Lab vial is suitable for HPLC, , LC/MS applications, and high-throughput analysis for reliable results. Sample vials can be used on all common automatic stamper for thin-neck bottles. Bottle Material: High Borosilicate Glass. Cap Material: Plastic. Septa Material: PTFE, Silicone Septa Color: Red, White Bottle Color: Transparent Cap Color: Blue Capacity: 2mL Bottle Mouth Outer Diameter: 9.3mm / 0.4 inch Bottle Size: 25.5 x 11.6mm / 1 x 0.5 inch (H * OD) Total Height: 34mm / 1.3 inch [Durable Glass Bottle]HPLC vials have heat resistance and high chemical resistance and are suitable for accommodating reagents with acidic, neutral, and alkaline pH values. [Sealed Design]Lab vials feature a screw design that ensures a consistent seal. Silicone septa and PTFE provide an evaporation-tight seal for compound sample storage in the chemical industry and research laboratories. [Easy to Distinguish]This vial has white printed graduations and a large writing area for sample identification or labeling. [Screw Vials]Our HPLC vials are suitable for common autosampler. [Pre- Cut Septa Screw Vials]The vials come with pre-slit septa that allow for easy needle penetration and sample extraction without the need for additional tools or equipment.InstructionTwist off the cap, pour the liquid into the bottle, and close the cap at .NOTE: Please check the size carefully before purchasing. (Red and white gasket inside the lid) Color: As Shown Material: Glass Package Contents: 200 * Autosampler Vial 2 * lable (Label styles are random, no specified styles are accepted) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.