David- Thanks for your response. I do need to know what the long term effects of exposures are as we haven't applied this finish before. We are very concerned about corrosion since chrome plating is vry shiney.And therefore MFG test will clear up this concern. Since this is metal on plastic, we consider doing thermal cycling test as CTE is different. I don't know how to correlate this test with field aplication over 5 years, i.e. what will be appropriate test cycles and dwell time at extreme temperatures. Thans again. Mary On Mon, 15 Apr 2002 18:16:25 -0700 David Douthit <[log in to unmask]> wrote: >Mary, > >Mixed Flowing Gas tests have very little to do with reality. They are used to >determine >the ability of various materials to resist certain reactive gases. > >They are not designed to simulate expected conditions. They are stimulation >type tests. >Correlating the results to real world conditions can be very problematic. > >Telcordia (Bellcore) Spec GR-63-CORE has some interesting measured amounts of >contaminants >for both indoors and outdoors. When you compare these numbers with MFG tests >the divergence >is very apparent. > >The real question is do you need to know what the long term effects >of exposures are or do you need to meet a contract requirement? > >David A. Douthit >Manager >LoCan LLC > >Mary Lin wrote: > >> Does anyone has experience with aging test of metal plating such as chrome, >> aluminum on plastic chassis in a light industry environment? What I can >>think >> of is the mixed flowing gas test, anything else I should be aware of? >> >> Thanks for your time. >> >> Mary >> _________________________________________________________________________ >> >> Live, laugh, and chat with friends about BMWs, Porsches, Jaguars and the new >>MINI >> at The World's Largest Auto Enthusiast Site >> http://www.roadfly.org/ >> >> --------------------------------------------------------------------------------- >> Technet Mail List provided as a free service by IPC using LISTSERV 1.8d >> 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 delivery of Technet send e-mail to [log in to unmask]: SET >>Technet NOMAIL >> 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/html/forum.htm for additional >> information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 >>ext.5315 >> --------------------------------------------------------------------------------- > >--------------------------------------------------------------------------------- >Technet Mail List provided as a free service by IPC using LISTSERV 1.8d >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 delivery of Technet send e-mail to [log in to unmask]: SET >Technet NOMAIL >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/html/forum.htm for additional >information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 >ext.5315 >--------------------------------------------------------------------------------- _________________________________________________________________________ Live, laugh, and chat with friends about BMWs, Porsches, Jaguars and the new MINI at The World's Largest Auto Enthusiast Site http://www.roadfly.org/ --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------