Pressure cooker test is 121c, 2atm and saturated rh.i don't think the hast of 130 c is on 3 atm.thx. "An engineer focused on utility and effectiveness, but also on efficiency and elegance" -F. P. Brooks, Jr. Original Message From: Wayne Thayer Sent: Thursday, January 30, 2014 11:07 AM To: [log in to unmask] Reply To: TechNet E-Mail Forum Subject: Re: [TN] 130C 85RH My steam tables (I actually learned how to design a steam plant in school!) indicate that saturated vapor at around 130C requires about 3 atmospheres. Pressure cooker only goes to two. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Karen Tellefsen Sent: Thursday, January 30, 2014 10:43 AM To: [log in to unmask] Subject: Re: [TN] 130C 85RH 85%RH at 130°C is higher than 1atm. so this condition must be pressurized. I'm pretty sure moisture is adsorbed at surfaces and at equilibrium with the water vapor, but I don't know how much. Sorry, no references. Karen Tellefsen - Electrical Testing Alpha / 109 Corporate Blvd./ S. Plainfield, NJ 07080 [log in to unmask] 908-791-3069 From: Joyce Koo <[log in to unmask]> To: <[log in to unmask]>, Date: 01/30/2014 10:26 AM Subject: [TN] 130C 85RH Sent by: TechNet <[log in to unmask]> Guys and Gals, I know JEDEC and others got 130C 85RH HAST test. What is the residence time of H2O on a hot surface of 130C? I know the pressure cooker test is high pressure of 2atm to kept the H2O there, but is HAST got pressure or not, if it is, does 85RH resulting evaporation rapid enough from the surface? What is boundary layer coverage (device surface/moisture) of H2O? Any reference will be greatly appreciated (if you do not have enough coverage and short residence time on surface, Is there any diffusion take place or ionic species got time to dissolve/react with the part?). Many thanks in advance. Best regards, Joyce Koo Researcher Materials Interconnect Lab Office: (519) 888-7465 79945 BlackBerry: (226) 220-4760 ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ***** Please note that my E-Mail address has changed ***** ____________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ____________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________