Hi Rudolph, There isn't one answer to your question. Would you expect to use the same ORT for a Pacemaker, or a computer, as you would for a toaster oven? 1.)The ORT should be designed to a specific product and not something pulled out of a book for a different type product. Is the test strong enough to find issues with production or is it too strong so that you decrease the field life by x? What stresses are best suited to your specific product, etc... 2.)The costs of the testing increase as you request a higher Confidence level. I have some papers that might help if you want to contact me off the TN group. Clayton Bonn Reliability Resources Ph: 714-903-1005 Cell: 714-612-9359 e-mail:[log in to unmask] www.reliability-resources.com -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Rudolph yu Sent: Saturday, March 07, 2009 9:57 AM To: [log in to unmask] Subject: [TN] What kind of ORT does the CM offer? Hi: For those who has experience with CM and has experience in thie field. I would like to know what type of ORT your CM used, and most importantly what are the confindent level and interval people will normally pick? I want to have a sample size that is meaningful, but at the same time trying to limited the 'extra unit" we need to build just for this process. Do people treat the post ORT units as sellable units, or they will needed to be scrapped? Where can I find more info. on this subject? It does not seems that IPC has a standard for ORT. Thanks Rudolph _________________________________________________________________ Windows LiveT Groups: Create an online spot for your favorite groups to meet. http://windowslive.com/online/groups?ocid=TXT_TAGLM_WL_groups_032009 --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------