David I've seen this before, when tubes are lose fitting in the bucket and rotate during centrifugation. The ink rubs off on the bucket wall. David -----Original Message----- From: Clinical biochemistry discussion list [mailto:[log in to unmask]] On Behalf Of David Burgess Sent: Monday, July 25, 2011 3:47 PM To: [log in to unmask] Subject: Disintgrating Bar-codes May I enquire if other labs experience barcode labels which are disfigured by centrifugation? Our most accute minds cannot explain how the barcodes become unreadable after the samples have been spun. Regards, David ------ACB discussion List Information-------- This is an open discussion list for the academic and clinical community working in clinical biochemistry. Please note, archived messages are public and can be viewed via the internet. Views expressed are those of the individual and they are responsible for all message content. ACB Web Site http://www.acb.org.uk Green Laboratories Work http://www.laboratorymedicine.nhs.uk List Archives http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html List Instructions (How to leave etc.) http://www.jiscmail.ac.uk/ Disclaimer: This e-mail and any files transmitted with it are confidential. If you are not the intended recipient, any reading, printing, storage, disclosure, copying or any other action taken in respect of this e-mail is prohibited and may be unlawful. If you are not the intended recipient, please notify the sender immediately by using the reply function and then permanently delete what you have received. Incoming and outgoing e-mail messages are routinely monitored for compliance with the Department of Health's policy on the use of electronic communications. For more information on the Department of Health's e-mail policy click here http://www.doh.gov.uk/emaildisclaimer.htm ------ACB discussion List Information-------- This is an open discussion list for the academic and clinical community working in clinical biochemistry. Please note, archived messages are public and can be viewed via the internet. Views expressed are those of the individual and they are responsible for all message content. ACB Web Site http://www.acb.org.uk Green Laboratories Work http://www.laboratorymedicine.nhs.uk List Archives http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html List Instructions (How to leave etc.) http://www.jiscmail.ac.uk/