Measuring instruments used for trade in Australia must be pattern approved.
Pattern approval is where an impartial body examines the design of an instrument prototype against our national or international standards. This determines the measurement accuracy of the instrument and whether the instrument retains this accuracy under a range of environmental and operating conditions.
We evaluate measuring instruments to check they meet specific Australian requirements. If your instrument passes the pattern approval process, we issue a certificate of approval.
After we receive your application, we either:
See Pattern approval instrument testing and assessment to find out more.
NMI’s Pattern Approval laboratory is accredited by the National Association of Testing Authorities, Australia. Our accreditation is to the ISO/IEC 17025 standard for testing and calibration services in relation to pattern approval and the physical performance evaluation of metering and trade measurement equipment.
Organisations undertaking R &D and product development for electronic equipment can access the Pattern Approval laboratory to provide testing to IEC standards across a range of areas, including:
NMI can provide help on technical matters relating to pattern approval of trade or legal measuring instruments. For more information please see the pattern approval instrument testing and assessment webpage. The webpage also provides information on the decision to approve instruments and issue a Certificate of Approval.
Non-pattern approval testing may be requested, in which case a measuring instrument test report may be issued. A measuring instrument test report is based on the performance of a module or a complete measuring instrument. It may or may not make reference to an Australian Pattern Approval Requirements document. Such a test generally involves accuracy tests only, performed under the conditions specified by the applicant. Measuring instrument test reports are only made available to the applicant.
A measuring instrument test report does not imply approval for trade or legal use but may be useful for the designer, manufacturer or user to assess the performance of the equipment. For example, a load cell manufacturer may wish to assess the performance of a load cell for engineering, scientific or promotional purposes. Such a test report is similar to that issued by a National Association of Testing Authorities (NATA) accredited laboratory. NATA endorsed reports can be issued for some instruments.
The fees for pattern approval depends on the type of measuring instrument you need approved.
Our Pattern approval fee guide spreadsheet [75KB XLS] provides the base rates for pattern approval.
More complex instruments may take more time than the estimate in the guide.
If you have any questions about our fees, email patternapproval [at] measurement.gov.au or phone 1300 686 664.
NMI offers the following services in relation to pattern approval and non-pattern approval testing:
Fees may be charged to cover the costs of performing any of the services listed above.
We issue certificates of approval for:
Last updated: 23 June 2021
Content ID: 54013