Prevent leakage under demanding conditions with Thermo Scientific™ screw cap microcentrifuge tube caps feature O-rings to form a secure seal. Optimised for secure, short-term storage in low temperatures, these non-autoclavable screw caps are available in a variety of colours and adapted to your scientific experiments.
- Free of RNase/DNase, human and mouse DNA, pyrogen, endotoxin, ATP, PCR inhibitor
- 100% virgin polypropylene resin specifically selected for high clarity and biologic applications
- O-ring design, thickness and material selection have been optimized to provide protective features for maximum sealing ability, biologic interaction and temperature capability, the black coloured O-ring is made from EPDM
- Coloured caps offered in multiple colour options ideal for separating, coding and tracking samples, amber coloured caps are ideal for UV protection of 1.22% transmittance between 220 and 500nm
- Non-tethered
- RCF range from 18000 to 25000 x g
- Temperature range -80 to +95°C
- Short term storage in -80°C, -20°C, dry ice and wet ice.
- Short term storage in vapor phase LN2 and suitable for a quick dip flash freeze in LN2
- Torque manual/hand torque: standard: 0.125 lbsf.in to 2.5 lbsf.in; Metric: 1.412 Ncm to 28.24 Ncm
- Torque automated/robotic torque standard: 1.312 lbsf.in to 2.5 lbsf.in; Metric: 14.83 Ncm to 28.24 Ncm
This product has met the following criteria to qualify for the following awards:
 | Sustainable Product Manufacturing | - Made in a facility which runs on >90% renewable energy
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To find out more about our Sustainability Attributes, click here.