Micronic offers a comprehensive range of 2D coded tubes. Identifying a sample via a code on the tube can be done in a number of ways. However the most reliable in terms of long-term identification and tracking of samples is via a 2D coding on the bottom of the tubes. However not all 2D coded sample storage tubes, even those using the same coding system, offer the same storage performance. Barcodes on Micronic 2D Data Matrix and 2D TraXis coded tubes are permanently laser-etched into the tube surface making them especially resistant to solvent attack and wear. Uniquely manufactured from a single component, the code in Micronic laser encrypted 2D codes cannot fade or peel off even when subjected to repeated handling and freeze-thaw cycles. Micronic NA, 724-941-6411, www.micronicna.com