There are several places to find information and graphs about ISO standards but its unfortunate the the ISO makes you purchase certain types of documentations. Here are 3 reference pages for ISO Standards that might be of assistance. *ISO 8655 (explanation & maximum number of permissible errors) *ISO 17025 (explanation, history & FDA relationship) *Calibration & Repair Process (interesting break-down here) These pages show great detail in what to expect from ISO standards other than what iso.org can show you. Not only do they explain what the "standard" is, they also explain how they attain this "standard". I hope this information help you on your way. Good luck.