Hi Victor, You'd need a nanohardness tester, not microhardness. ------Original Message------ From: Victor Hernandez Sender: TechNet To: [log in to unmask] ReplyTo: TechNet E-Mail Forum ReplyTo: [log in to unmask] Subject: [TN] micro hardness tester Sent: Nov 2, 2012 15:56 Fellow TechNetters; Any recommendation for checking the hardness of gold plated, >20 micro inches, spring contacts on DIMM connectors, options card connectors and associated cards, PCB?, Victor, ______________________________________________________________________ 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] ______________________________________________________________________ Regards, Vladimir SENTEC Testing Laboratory Inc. 11 Canadian Road, Unit 7. Scarborough, ON M1R 5G1 Tel: (416) 899-1882 Fax: (905) 882-8812 www.sentec.ca ______________________________________________________________________ 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] ______________________________________________________________________