Proficiency Testing Australia
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Proficiency Testing Australia (PTA) is one of Australia’s largest and most experienced proficiency testing providers. PTA is a wholly owned subsidiary of the National Association of Testing Authorities, Australia (NATA) and was formed on 1 January 2006 to offer industry a choice of proficiency testing services for calibration, testing and inspection. PTA provides a diverse range of proficiency testing programs and measurement audits to a very broad range of industries.  PTA delivers its proficiency testing, consultancy, and training services internationally and nationally across Australia, with operations based in Sydney (head office) and Brisbane.


PTA is:

• a leading national and international provider of proficiency testing programs and measurement audits.

• a leading international provider of training and consultancy in proficiency testing.

• supported by industry groups and technical experts who assist PTA in the planning, conduct, analysis and review of proficiency testing programs and measurement audits.

• comprised of qualified and experienced staff offering friendly, customer-focussed service.

• readily accessible, with offices in Sydney and Brisbane.

• accredited for technical competence as a Proficiency Testing Provider by IANZ (International Accreditation New Zealand), ensuring that its operations remain in compliance with international practices, defined by ISO/IEC 17043.

• a private not-for-profit company, governed by a Board that has representation from industry groups.


PTA plays a key role in providing confidence to laboratories in their testing and measurement results.  As a proficiency testing provider, PTA provides a means of assessing the ability of laboratories to competently perform specific tests and measurements.  


PTA is continuously expanding and developing its range of proficiency testing programs, with numerous programs offered in the areas of Chemical Testing, Biological Testing, Construction Materials, Mechanical Testing, Non-Destructive Testing and Calibration.  PTA is also able to develop customised programs for individual facilities or industry organisations.


PTA represents Australia through:

• the provision of proficiency testing programs to international participants from various countries worldwide.

• the provision of training and consultancy on proficiency testing.

• its agreements with international organisations, who act as local agents for a range of PTA’s proficiency testing programs.

• Involvement with relevant international committees.




PTA provides a range of consulting across a range of disciplines including:

• Proficiency testing 

• Method validation 

• Data analysis

• Reporting

• Quality management

• Specialised technical services

Proficiency Testing Australia has conducted statistical consultancy services for Australian Commonwealth Government departments, industry associations, laboratory accreditation bodies and reference material producers. PTA provides statistical consultation to the Australian Government Department of Agriculture, Fisheries and Forestry, via the National Residue Survey (NRS).



More information about PTA’s proficiency testing programs, measurement audits, consultancy and training is available by contacting PTA on:

T +61 2 9736 8397

E This email address is being protected from spambots. You need JavaScript enabled to view it.

More information about all of PTA’s activities can be found on the PTA website –