A Series Standard Screw Cap Reagent Storage Tubes are laboratory storage tubes made of medical grade polypropylene (PP). Every model is tested at -80 kPa negative pressure for no leakage, protecting samples through freezing, handling and storage. The series covers 0.5 ml, 1 ml, 1.5 ml and 2 ml in ten models, with self-standing conical bottoms, pointed bottoms, printed graduations and an amber option.
Polypropylene is the material most laboratory storage tubes are made of, chosen for its balance of transparency, mechanical strength and low-temperature chemical resistance. The A Series uses medical grade PP raw material, keeping tube bodies transparent for visual volume checks and supporting routine freezing and thawing workflows.
Every A Series tube is tested at -80 kPa negative pressure with no leakage. A closure that remains intact under negative pressure protects samples through freeze-thaw cycles, cap handling and transfers between cold storage and the bench, while reducing evaporation and contamination risk during long-term storage.
The series offers two bottom families: self-standing conical bottoms that keep tubes upright on the bench and in storage boxes, and pointed bottoms in self-standing and standard versions. All models use a high screw cap. Printed graduations are available on selected models (FT-05-31, FT-15-31, FT-20-06) for direct volume reading, and model FT-20-05-Z is supplied in amber for light-sensitive reagents.
| Catalog No. | Capacity | Cap Type | Bottom Shape | Graduations | Color | Packaging |
|---|---|---|---|---|---|---|
| FT-05-31 | 0.5 ml | High cap | Self-standing conical | Printed | Clear | 500 pcs/bag, 20 bags/carton |
| FT-15-31 | 1.5 ml | High cap | Self-standing conical | Printed | Clear | 500 pcs/bag, 20 bags/carton |
| FT-10-03 | 1 ml | High cap | Conical | — | Clear | 500 pcs/bag, 20 bags/carton |
| FT-10-04 | 1 ml | High cap | Self-standing conical | — | Clear | 500 pcs/bag, 20 bags/carton |
| FT-15-07 | 1.5 ml | High cap | Self-standing pointed | — | Clear | 500 pcs/bag, 20 bags/carton |
| FT-15-08 | 1.5 ml | High cap | Pointed | — | Clear | 500 pcs/bag, 20 bags/carton |
| FT-20-04 | 2 ml | High cap | Self-standing conical | — | Clear | 500 pcs/bag, 20 bags/carton |
| FT-20-05 | 2 ml | High cap | Self-standing conical | — | Clear | 500 pcs/bag, 20 bags/carton |
| FT-20-06 | 2 ml | High cap | Self-standing conical | Printed | Clear | 500 pcs/bag, 20 bags/carton |
| FT-20-05-Z | 2 ml | High cap | Self-standing conical | — | Amber | 500 pcs/bag, 20 bags/carton |
Screw cap storage tubes of this class are used for reagent reserves, sample aliquots and freezing workflows in research laboratories, clinical laboratories and biobanks. The mix of bottom shapes, capacities and the amber option allows one series to cover both routine reagent storage and light-sensitive materials.
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