::Got a pointer to the relevant docs? I'll have to search. I've got copy in my mitt, but it's now 4 years old - but of course you can't see that :) A quick search reveals many places that want to sell you the standard, no one seems to have extracted bits for general consumption. Here is the US standards people link - $105.00 though You might also look for JEDEC JC-14 http://www.jedec.org/standards-documents/results/soldering Looks to have free downloads after registration. Colin -- cdb, colin@btech-online.co.uk on 3/7/2010 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