The problem we are facing is that a customer is having us hold SMT devices for next years production. We have some materials in storage for 6 months already and by the time the material is in use, some may be over one year. In the past one customer who held material, for 15 months and then found it was unsolderable, scrapped over $100,000 worth. Has the IPC issued any guidelines for storage times? Are there recommneded techniques such as vapor bags with dessicants or storage in inert gas environments, etc that are practical? Any comments on this topic would be greatly appreciated. Leo Reynolds Electronic Systems, Inc. P.O. Box 5013 Sioux Falls, SD 57117 Ph 605-338-6868 Fax 605-338-5061