Over deze norm
This part of ISO 286 establishes the ISO code-system for tolerances to be used for linear sizes of for features of size of type cylinder and type two parallel planes. It translates between ISO + and - tolerancing of ISO 14405 and the ISO code system and is only applicable when the envelope requirement according to ISO 14405 is in force. It also defines the basic concepts and the related terminology for this code system. Furthermore, it provides a standardised selection of tolerance classes for general purposes from amongst the numerous possibilities. Finally, it defines the basic terminology for fits and explains the principles of "basic hole" and "basic shaft".