DIN EN ISO 1938-2:2017-05

This part of ISO 1938-2 specifies the most important metrological and design characteristics of reference disk gauges. This part of ISO 1938-2 covers linear sizes of the gauge up to 500 mm. This document is a Geometrical Product Specification (GPS) standard and is to be regarded as a general GPS standard (see ISO/TR 14638). It influences links 4, 5 and 6 of the size chain of standards in the general GPS matrix. The ISO/GPS Matrix model given in ISO 14638 gives an overview of the ISO/GPS system of which this document is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this document. The default decision rules given in ISO 14253-1 apply to specifications made in accordance with this document, unless otherwise indicated. This document (prEN ISO 1938-2:2014) has been prepared by Technical Committee ISO/TC 213 "Dimensional and geometrical product specifications and verification" in collaboration with Technical Committee CEN/TC 290 "Dimensional and geometrical product specification and verification", the secretariat of which is held by AFNOR (France). The German committee responsible for this document is NA 152-03-02-07 UA "Längenprüftechnik außer Koordinaten-, Form- und Oberflächenmesstechnik sowie Gewindekenngrößen" ("Length checking practice except coordinate, form and surface measuring technology as well as characteristics of screw threads") at DIN Standards Committee Technical Fundamentals (NATG).