DD ISO/PAS 12868:2009 PDF

DD ISO/PAS 12868:2009 Geometrical product specification (GPS). Coordinate measuring machines (CMM). Testing the performance of CMMs using single-stylus contacting probing systems DD ISO/PAS 12868:2009 is a Publicly Available Specification which specifies the acceptance and reverification tests for CMM probing error. It is applicable only to Cartesian CMMs using a single-stylus contacting probing system, discrete-point probing mode, and a spherical or hemispherical stylus. Contents of DD ISO/PAS 12868: Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols 5 Requirements for metrological characteristics 5.1 Single-stylus form error 5.2 Probing system 5.3 Stylus 5.4 Environmental conditions 5.5 Operating conditions 6 Acceptance test and reverification test for single-stylus form error 6.1 General 6.2 Principle 6.3 Measuring equipment 6.4 Procedure 6.5 Derivation of test results 7 Compliance with specifications 7.1 Acceptance test 7.2 Reverification test 8 Applications 8.1 Acceptance tests 8.2 Reverification tests 8.3 Interim checks