2mL 9-425 Screw Vials with Red PTFE / White Silicone Septa and Blue Screw Cap with Hole,Fits 2mL 9-425 Screw Top Vials for Lab Use
This Red PTFE / White Silicone Septa with Blue Screw Cap is designed for 2mL 9-425 screw top vials, providing a reliable and secure sealing solution for a variety of laboratory applications. The septa features a PTFE layer for chemical resistance and a silicone backing for excellent sealing flexibility, ensuring that your samples stay intact and uncontaminated.
【Vial caps material】: 9mm Blue Polypropylene Screw-Thread caps
【9mm liner】: Pre-slit liner, more easy to pierce,protect injection needle
【Vial caps Dimension】: hplc caps diameter 9mm, height 6.2mm.Pack of 100
【Easy to use】:9mm Bi-layer includes silicone and PTFE. Pre-slit Silicone septa for multiple injections. PTFE-lined screw cap for organic samples.
【Application】:Suitable for 1.5 mL, 1.8 mL, 2 mL 9-425 vials .



Sample Storage and Sealing
Ideal for securely sealing 2mL screw top vials, preventing sample evaporation, contamination, and maintaining long-term storage integrity.
Chemical & Biological Research
Perfect for storing volatile chemicals, solvents, or biological samples requiring airtight sealing. The PTFE septa ensures chemical resistance, and the silicone layer adds flexibility to ensure a perfect seal.
Chromatography and Sampling
Commonly used in gas chromatography (GC) and liquid chromatography (LC) to protect samples from contamination. The blue screw cap with hole allows easy access to samples without disturbing the vial seal.
Laboratory Testing & Analysis
Suitable for pH testing, chemical analysis, biological testing, and environmental testing. The cap’s hole allows for syringe or needle access to samples for injection or withdrawal.
Environmental Monitoring
Perfect for air and water sample collection in environmental laboratories. The septa and cap system ensures that sample integrity is preserved throughout testing, providing contamination-free storage.
Pharmaceutical & Medical Applications
Ideal for pharmaceutical research where maintaining sample integrity is critical. The septa system offers reliable sealing for the medical industry, and the cap's hole allows easy sample access for testing or analysis.
Food & Beverage Testing
Commonly used in food and beverage quality control for chemical residue analysis, flavor testing, or ensuring sample preservation during lab testing.
Specifications:
| Item Name | 9-425 Screw Thread Vial Blue Caps |
| Thickness | 1.0±0.15 |
| Hardness | 45°±5° |
| Diameter | 9.0±0.2 |
| Cap Height | 6.2±0.2 |
| Cap Diameter | 11.8±0.2 |
| Septum Cleanliness | Cleanliness Test(GC Head Space Test) |
| HPLC Extractables Text | No detectable peaks |
| Silicone Colour | White |
| Membrane Colour | Red |
| Cap Colour | Blue |
| Top/cap Type | 9-425 Screw top |
| Cap/Septum Sealing | Sealing Test |
| Heavy meatls and Arsenic release |
Content of Heavy metals and Arsenic is considerably
below the limit values of European Ph. and China Ph.
|
Packing Options:
1. 100pcs, 9-425 Screw Thread Vial Blue Caps
2. 300pcs, 9-425 Screw Thread Vial Blue Caps
3. 500pcs, 9-425 Screw Thread Vial Blue Caps
4. 1000pcs, 9-425 Screw Thread Vial Blue Caps
5. 3000pcs, 9-425 Screw Thread Vial Blue Caps


