This part of ISO 1132 defines terms used in International Standards specifying tolerances for boundary dimensions, geometrical accuracy, running accuracy and internal clearance for rolling bearings. In addition, it specifies general condi­tions under which these tolerances apply and gives symbols for a num­ber of the concepts defined. NOTE In addition to terms and definitions used in the three official ISO languages (English, French and Russian), this part of ISO 1132 gives the equiv­alent terms and definitions in the German language; these are published under the responsibility of the member body for Germany (DIN). However, only the terms and definitions given in the official languages can be considered as ISO terms and definitions. Measuring and gauging principles and methods for assessing compliance with many of the definitions in this part of ISO 1132 are given in ISO/TR 9274. ISO 5593 is a vocabulary of terms in the field of rolling bearings and, as such, is a valuable complement to this part of ISO 1132.