scope:

This part of ISO 11090 specifies, with reference to ISO 230-1 and ISO 230-2, geometric and machining tests and tests for checking accuracy and repeatability of numerically controlled positioning axes for general purpose and normal accuracy die sinking electro-discharge machines (EDM). It also specifies the applicable tolerances, corresponding to the above-mentioned tests.

This part of ISO 11090 is applicable to two column machines of slide-head type and cross-slide table type.

This part of ISO 11090 deals only with the verification of accuracy of the machine. It does not apply to the testing of the machine operation (vibrations, abnormal noises, stick-slip motion of components, etc.), nor to the checking of its characteristics (such as speeds, feeds, etc.), which should generally be checked before the testing of the accuracy

This part of ISO 11090 provides the terminology used for the principal components of the machine and the designation of the axes with reference to ISO 841^[1].

NOTE - In addition to the terms used in the three official ISO languages (English, French and Russian), annex A of this part of ISO 11090 gives, for information, the equivalent terms in the Dutch, German, Italian and Swedish languages; these are published under the responsibility of the national member bodies for Belgium (IBN), Germany (DIN), Italy (UNI) and Sweden (SIS). However, only the terms given in the official languages can be considered as ISO terms.