- Permanently laser etched 2D code on base and human readable number on the base, ensuring a permanent link between sample and data
- 2D codes readable without removing tubes from racks
- High contrast 2D codes are more reliably readable in frost or condensation conditions
- 100% quality control, each tube is tested to ensure both readability and uniqueness
- Leak tested to ensure sample security
- Suitable for sealing with screw caps or TPE septum caps
- Suitable for cryogenic storage*
*Not for use in liquid phase nitrogen