The subject provides the integrated set of basic knowledge in scientific branche metrology from the viewpoint of practical working use in the field of quality control and in the skill work with measuring gauges in mechanical production enterprices units, where the main aim is assurance of all grades in relationships from measured subject (product) to the definition of measured units. The introductory lecture part deals with nondestructive tests – defectoscopy. The further attention is directed to the legal metrology, to the general metrology and to the selected metrology parts of basic variables. Product quality is given by many factors as by material quality, production machine tools and devices (geometrical and working accuracy, the control …) measuring gauges and testing procedures. Laboratory exernices are orientated to the acquaintance of selected measuring devices, procedures and methods for assurance of production quality and practical utilization of measuring ganges.