MIL-C-28809 and MIL-STD-2000A were both cancelled without replacement in 1995. Class 3 J-STD-001 is probably the closest but 28809 has a lot of "shalls" that might be exceptions or additions to J-STD-001 depending on how close you want to get to it or what your customer requires. For example, 28809 prohibits water soluble fluxes whereas J-STD-001 allows it at a low activity (others activity levels with testing are allowed as well). Subtier specs for materials may be an issue, MIL-P-55110 was required for rigid boards, MIL-F-14256 for flux,...etc. Regards, Mike -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Brad Saunders Sent: Wednesday, April 28, 2010 4:41 AM To: [log in to unmask] Subject: Re: [TN] MIL-P-28809 the ole "28809" actually did go to P prior to it's being replaced by good ole MIL-STD-2000, that was thought to be to harsh/strict and it was obsoleted without replacement, that was when "oh-oh-one" took over. The J-STD-001, a very nice spec has many of it's roots in the ole 28809 as does the CCA modification/rework "77" specs. Without checking the facts, I believe that's how it went. Don't get me going on the WS spec and solder in vias... or or that 28809 tracked very well with the design standard MIL-STD-275, replaced by IPC-D-275... ----- Original Message ----- From: Luan Nguyen<mailto:[log in to unmask]> To: [log in to unmask]<mailto:[log in to unmask]> Sent: Tuesday, April 27, 2010 9:11 PM Subject: [TN] MIL-P-28809 Dear all, Would you help me to give the name of IPC standard equivalent MIL-P-28809. Many thanks. *************************** Nguyen Hoang Luan QA Supervisor - IPC Trainer Spartronics VietNam Co, Ltd. 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