:: Reference? IPC -A-610C J-STD-001C March 2000. Temperatures mentioned are minimum, for the standard, I mainly used class 3 as I was in medical manufacturing. Colin -- cdb, colin@btech-online.co.uk on 5/01/2009 Web presence: www.btech-online.co.uk Hosted by: www.1and1.co.uk/?k_id=7988359 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist