Scope and field of application 2.1 This International Document specifies the general metrological requirements applicable to measuring instruments and describes tests for verifying the compliance of an instrument with these requirements. 2.2 This Document shall be taken into consideration by the OIML Technical Committees and Subcommittees as a basis for establishing particular influence quantity requirements and tests to be specified in International Recommendations applicable to particular categories of measuring instruments (hereafter in brief: relevant Recommendation). 2.3 The relevant Recommendations may either specify that requirements specified in this Document apply only to devices that are electronic or also to devices which are not strictly electronic. Notes: (1) This Document does not cover technical requirements for measuring instruments; these requirements are to be given in the relevant Recommendation. For example, requirements for zero-setting devices, totalizers, etc. are not given in this Document. (2) This Document does not address aspects such as electrical safety or emission of electromagnetic phenomena from instruments. Guidelines for these aspects should be followed in accordance with the applicable international, regional or national regulations, often detailed in standards. (3) This Document does not address aspects related to software. At the time of drafting this version of OIML D11, OIML TC 5/SC 2 is preparing a separate document dealing with this subject.