Andrew, We purchase our bare cards in packages of 20 each approximately, with dessicant inside, and sealed packages. We open them just prior to use. That seems to work best to avoid moisture absorption by the cards. Hope this helps! Mary Smoot Advisory Process Engineer Lexmark Electronics 740 New Circle Rd NW Lexington, KY 40550 [log in to unmask] Andrew G Kettlewell <[log in to unmask]> on 10/19/98 08:49:05 AM Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond to Andrew G Kettlewell <[log in to unmask]> To: [log in to unmask] cc: (bcc: Mary Smoot/Lex/Lexmark) Subject: [TN] Shelf Life/Storage for Bare PCB We are in need of establishing some procedures and policies regarding storage and shelf life of bare printed circuit boards. Is there any industry standards regarding storage and/or shelf life for bare printed circuit boards?? If not, what are some normal practices that are being used by other electronics manuafacturers?? Thanks for any help. Andrew Kettlewell Engineer Onan Power Electronics St Peter, MN ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################