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| Legal Metrology - Type Approval |
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TYPE APPROVAL OF MEASURING INSTRUMENTS
Measuring
instruments for mass-, volume-, length- and area must be type approved
before they may be used legally for trade purposes.
- Instruments
are examined and tested to ensure that they meet the legal, technical
and accuracy requirements in terms of the relevant
specifications/regulations.
- On the successful completion of the
evaluation a national Type Approval Certificate is issued, which means
the instrument may be used for trade purposes.
- In addition a
Pattern Description document for every approved instrument is issued
and is available to users and the public. It covers
- A description of the instrument and technical requirements;
- Restrictions on use.
- An index of approved instruments is also available on a data base.
- OIML R documents are sourced to give guidance on international requirements.
REQUIREMENTS FOR TYPE APPROVAL SUBMISSION
- An application form must be submitted for each instrument.
- Functional
description – A comprehensive functional description of the instrument
must be submitted. In the case of a modification include a list
detailing all differences between original approval and modified
instrument.
- Supporting documentation:
- Service manual.
- Operational manual.
- Calibration manual.
- Components list.
- Component layout.
- Circuit diagrams.
- Mechanical drawings.
- Drawings and description of method of securing the instrument.
- Software
- shall be assigned with a fixed version number. This version number
shall be adapted in the case of every software change that may affect
the functions and accuracy of the instrument.
- Embedded software
- the manufacturer/agent shall describe or declare that the software of
the instrument or module is embedded, i.e., it is used in a fixed
hardware and software environment and cannot be modified or uploaded
via any interface or by other means after securing and/or verification.
In addition to the documentation required in 3 the manufacturer/agent
shall submit the following documentation:
- Description of the metrologically relevant functions
- Software identification (fixed version number).
- Securing measures foreseen to provide for evidence of an intervention
- Sample of instruments for laboratory evaluation - An operational instrument shall be provided for the laboratory evaluation.
- Sample
of the instrument for field tests - The installation of the instrument
on site and the provision of test equipment is the responsibility of
the submitter.
- OIML Certificate of Conformity (CoC) - The
following documentation (in English) is required when an OIML CoC
accompanies the application for type approval:
- Copy of the OIML Certificate of Conformity.
- Copy of the associated OIML Test Report.
- Declaration of authenticity of the OIML Certificate of Conformity and Test Report.
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