Dear Sirs, as an institute for production engineering at the Technical University of Aachen, Germany, we are consulting a company in stroring the components of their products. In this context we need information about how long electronical components like circuit boards or wires can be stored before they are mounted into the product. We would like to know if there are any international standards (e.g. ISO) about this topic or if you can give us some advice. And we also would like to know under what conditions (e.g. concerning humidity or temperature) the durability can be extended. Thanks a lot in advance for your help! Best Regards Thomas Lange-Stalinski ------------------------------------------------------------------------ ------------------------ Dipl.-Ing. Thomas Lange-Stalinski Research Assistent Laboratory of Machine Tools and Production Engineering Technical University of Aachen Steinbachstr. 53 D-52056 Aachen Germany Phone: ++49/ 241/ 80-7397 Fax: ++49/ 241/ 8888-293 E-mail: [log in to unmask] ------------------------------------------------------------------------ ------------------------ ################################################################ 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 web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################