Reliability Evaluation Reliability, in the DOD sense, is described by two separate specifiations. The first, Mil-R-22973, (obsolete and hard to find) defines the statistical criteria for identifying through test (called an Index Determination) the inherent MTBF of the item. The second, Mil-Std-781 (now Mil-HDBK) provides a series of reliability sample tests with alternate levels of customer/producer decision risks. Note, 781 presumes that a valid Index Determination has been previously conducted, or that the true MTBF is known from other means. I know of no private sector or Industry equivalent to either of the above documents. Hope this helps. Regards Jim Moffitt *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************