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Thumbnail Filmstrip of Screw Cap 13mm Black Closed Top Vial Cap w/ Natural PTFE/Natural Silicone Septa, 100/pk Images
Screw Cap 13mm Black Closed Top Vial Cap w/ Natural PTFE/Natural Silicone Septa, 100/pk - CV1948
Ready-to-use Tisch CV1948 cap and septum assemblies reduce preparation time while maintaining the seal integrity demanded by automated HPLC and GC workflows. Factory assembly under controlled conditions ensures each septum seats with uniform compression, delivering predictable reseal characteristics from the first through the final injection. In sum, standardized dimensional compliance across the full product line enables confident cross-platform deployment without instrument-specific qualification testing.
Reliable injection-to-injection reproducibility in your chromatographic workflow starts with consumables engineered to maintain dimensional and chemical consistency across every lot. Factory-matched cap and septum assembly gives you guaranteed seal performance from the first puncture, eliminating the variability of manual septum installation across large sample sets. Ensure your analytical results reflect true sample composition rather than containment variability by selecting vials, caps, and septa built to consistent specifications.
Compatible Chromatography Components
| Vials | 13mm Screw Thread Clear and Amber Glass Vials (4mL) |
| Thread | 13-425 / ND13 |
- Cap Size
- 13mm
- Capacity
- 1.5ml
- Color
- Black/ Natural/ Natural Septa
- Construction
- Polypropylene (PP)
- Diameter
- 13mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Vial Cap Type
- Screw-top
- Weight
- 0.17
- Clinical Laboratory Testing - Pre-installed septa ensure uniform compression and seal integrity across high-throughput diagnostic sample batches.
- Regulatory Compliance Testing - Quality-verified paired assembly supports documented consumable traceability in GMP and GLP environments.
- High-Volume Sample Prep - Ready-to-use assembly eliminates manual septum placement, streamlining preparation of large environmental sample sets.
- Routine HPLC Analysis - Pre-assembled cap and septum pairs reduce preparation time for daily calibration and sample queue loading.
- Automated Sample Processing - Factory-centered septum positioning prevents the needle deflection caused by manually misaligned septa.
- Pharmaceutical Batch Release - Factory-matched components deliver the lot-to-lot seal consistency required for validated release testing methods.