About OIML

The International Organization of Legal Metrology (OIML) is a worldwide, intergovernmental organization whose primary aim is to harmonize the regulations and metrological controls applied by the national metrological services, or related organizations, of its Member States.

1 Introduction

The primary aim of this International Document is to provide OIML Technical Committees and Subcommittees with guidance for establishing appropriate requirements for software related functionalities in measuring instruments covered by OIML Recommendations.

Furthermore, this International Document can provide guidance to OIML Member States in the implementation of OIML Recommendations in their national laws.

2 Scope and field of application

2.1 This International Document specifies the general requirements applicable to software related functionality in measuring instruments and gives guidance 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 specific software requirements and procedures in OIML Recommendations applicable to particular categories of measuring instruments (hereafter termed "relevant OIML Recommendations").

2.3 The instructions given in this Document apply only to software controlled measuring instruments or electronic devices.

Notes:

• This Document does not cover all the technical requirements specific to software controlled measuring instruments; these requirements are to be given in the relevant OIML Recommendation, e.g. for weighing instruments, water meters, etc.
• This Document addresses some aspects concerning data security. In addition, national regulations for this area have to be considered.
• As software controlled devices are always electronic, it is also necessary to consider OIML D 11 General requirements for electronic measuring instruments.