This International Standard specifies the nomenclature appropriate to each part of the machine and, with reference to ISO 230-1, the geometrical and practical tests for double-end tenoning machines, and gives the corresponding permissible deviations which apply to machines of general purpose use and normal accuracy. NOTE - In addition to terms used in the three official ISO languages (English, French and Russian), this International Standard gives the equivalent terms in the German, Spanish, Italian and Swedish languages; these are published under the responsibility of the member bodies for Germany, F.R. (DIN), Spain (AENOR), Italy (UNI) and Sweden (SIS). However, only the terms given in the official languages tan be considered as ISO terms. This International Standard deals only with the verification of the accuracy of the machine. lt does not apply to the testing of the running of the machine (vibrations, abnormal noises, stick- Slip motion of the components, etc.), nor to its characteristics (Speeds, feeds, etc.) which should generally be checked before the accuracy is tested.