I would suggest you contact the American Society for the Testing of Materials (ASTM). Their test methods are most often used for measuring materials properties. They can be reached at: ASTM 100 Barr Harbor Drive West Conshohocken, PA 19428-2959 610-832-9585 http://www.astm.org e-mail: [log in to unmask] ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################