The guideline describes procedures for the design/type testing, original/receiving inspections as well as the monitoring inspection of steel squares 90°. The necessary work procedures for the respective examinations are described in form of directly applicable work instructions. Apart from the calibration also the preparatory work for the calibration unit as well as for the inspection items are described. Further help is given for the evaluation and the documentation of the calibration. The guideline is valid in connection with Part 1.1 and Part 1.2.
DIN 874-2:2003 Geometrical Product Specifications (GPS) - Straight edges - Part 2: Knife edge straight edges; Dimensions, technical delivery conditions
DIN 875-1:2005-07 Geometrical Product Specifications (GPS) - Squares 90° - Part 1: Steel squares 90°
DIN 879-1:1999 Verification of geometrical parameters - Dial indicator for linear mesurement - Part 1: With mechanical indication
DIN 879-3:1999 Verification of geometrical parameters - Dial indicator for linear measurement - Part 3: With mechanical indication and electrical limit contacts
DIN EN ISO 1101:2008 Geometrical Product Specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, location and run-out (ISO 1101:2004); German version EN ISO 1101:2005
DIN EN ISO 3650:1999 Geometrical product specifications (GPS) - Length standards - Gauge blocks (ISO 3650:1998); German version EN ISO 3650:1998
VDI 1000-2010 VDI Guideline Work - Principles and procedures
VDI/VDE/DGQ 2618 Blatt 1.1-2001 Inspection of measuring and test equipment - Instructions to inspect measuring and test equipment for geometrical quantities - Basic principals
VDI/VDE/DGQ 2618 Blatt 1.2-2003 Inspection of measuring and test equipment - Instructions for the inspection of measuring and test equipment for geometrical quantities - Uncertainty of measurement