Chroma Globe Screw Caps
All pictures shown are for illustration purpose only. Actual product may vary.
Chroma Globe Screw caps are short thread ND9 and are suitable for robotic handling by autosamplers. Available in a wide choice of colours and septa material to suit every application.
Virgin PTFE - Very inert and temperature resistant, recommended for non-critical HPLC applications
Natural Rubber/PTFE - Ideal for multiple injections due to its resealing properties
White Silicone/Red PTFE - purest synthetic elastomer recommended for critical analyses
Red Rubber/Beige PTFE - synthetic rubber comparable to silicone in terms of purity
Red PTFE/White Silicone/Red PTFE - coated with PTFE on both sides for low particle formation
Pre-slit - penetration aid for blunt and thick instrument needles
UltraBond - screw cap and septa form an inseparable unit so that the liner cannot be pushed into the vial
UltraClean - high-purity silicone/PTFE septa recommended for critical analysis
Magnetic - for CTC GC PAL + Thermo Scientific TriPlus Autosampler
Closed top - for storage purposes
Use these caps to secure Chroma Globe screw vials with ND9 thread.
Features
- Manufactured in certified clean rooms
- Closures are packed in tamper-evident PE bags to protect from possible contamination
- Septa available in different hardnesses for different needle types
- Used to seal ND11 short thread Chroma Globe screw vials
Specifications
| Septa | Hardness | Thickness |
| Virgin PTFE | 53° shore D | 0.2 mm |
| Red-orange Natural Rubber/Transparent PTFE | 60° shore A | 1.0 mm |
| White Silicone/Red PTFE | 55° shore A | 1.0 mm |
| Red Rubber/Beige PTFE | 45° shore A | 1.0 mm |
| Red PTFE/White Silicone/Red PTFE | 45° shore A | 1.0 mm |
| White Silicone/Blue PTFE Pre-slit | 55° shore A | 1.0 mm |
