What’s included with our proficiency testing studies
We evaluate your laboratory’s performance against pre-established criteria, using inter-laboratory comparisons.
We provide independent evidence to determine the validity of your measurements, and to help improve your overall performance.
This includes:
- offering studies for a wide range of tests and matrices combinations
- performing rigorous statistical analysis on submitted results
- providing detailed reports and tailored feedback to participating laboratories.
What you can expect
By participating in our studies, you can:
- fulfil the ISO/IEC 17025 requirements for your laboratory
- improve your laboratory’s performance in terms of the accuracy of chemical and gas measurements
- evaluate and compare methods and procedures used in chemical and gas measurements
- identify problems with equipment, sample preparation or data processing procedures
- identify training needs
- instil confidence in staff, management and external users of your laboratory service
- assess the practical application of measurement uncertainty
- use PT samples for method validation or as control samples in your daily routine analyses.
Proficiency testing in 2025
We have scheduled the following tests for chemical and gas proficiency testing. If you need a test that is not scheduled then contact us about our Rapid PT Studies.
Scheduled tests
March
- AQA 25-01 Metals, nutrients and exchangeable bases in soil
- AQA 25-02 Illicit Drugs - Amphetamine-type Stimulants
- NMI rapid PT studies
April
- AQA 25-03 Pesticides in soil
- AQA 25-04 Hydrocarbons/PAHs in soil
- AQA 25-05 Methamphetamine and/or MDMA in wipes
- NMI Rapid PT Studies
May
June
- AQA 25-08 Illicit Drugs – Heroin
July/August
- AQA 25-09 PFAS in water
- AQA 25-10 PFAS in soil/biosolid
- AQA 25-11 PFAS in biota/food
- AQA 25-12 Metals, nutrients and anions in soil
- NMI Rapid PT Studies
September
- AQA 25-13 Trace elements and solids in sea water and river water
- AQA 25-14 Nutrients and anions in sea water and river water
- AQA 25-15 Pesticides in river water
- AQA 25-16 Hydrocarbons/PAHs and phenols in river water
- NMI Rapid PT Studies
November
- AQA 25-17 Illicit Drugs – Cocaine
- NMI Rapid PT Studies
Any time Rapid PT Study
You can do Rapid PT Studies at any time during the year rather than on a pre-defined schedule.
For instance, you may need one when you have an audit. Participating in these studies will allow laboratories to fulfil the requirements of ISO/IEC 17025. You can also use them for method validation, to train new staff or as a tool for corrective action.
You will have the option to design your own study. You can select the matrix and group of analytes of interest. The study is ‘closed’ once we have received your data.
We will use pre-set assigned values, as per ISO/IEC 17043 requirements, to assess performance. We will send the performance summary report to you within 5 working days of the results submission date, or as discussed.
Please send your requests to proficiency@measurement.gov.au. For more details please see our NMI rapid PT studies guide.
Proficiency testing reports
View previous years proficiency testing reports.
Gas proficiency testing
We provide gas PT services in areas of strategic importance to Australia. Our PT samples are based on unique gas compositions with studies examining:
- pipeline natural gas from South-Eastern Australia
- LNG from the North West Shelf and from processed coal seam gas
- environmental measurement and coal mine safety.
Participating isn’t just important for laboratories. It also provides confidence during custody transfers for refineries and pipeline operators.
We also offer preparative PT studies for reference material producers in the specialty gas industry.
We aim to coordinate a new area of study each year based on participants’ requests.
To suggest a new gas mixture to add to our testing schedule, email us at gas@measurement.gov.au
Chemical proficiency testing
We provide PT for a range of sectors including environment, agriculture, food and law enforcement.
We select the analytes and matrices for our PT studies based on participants’ needs and requests. A study can include up to 60 analytes at both high and low levels.
Our programs are accredited to ISO 17043 cover a wide range of tests:
- illicit drugs
- organic contaminants including pesticides and hydrocarbons
- dissolved, total and acid extractable metals
- physical properties
- inorganic non-metallic constituents
- photosynthetic pigments
- agricultural soil properties like colwell-p.
We aim to coordinate a new area of study each year based on participants’ requests.
To suggest a new matrix or analyte to add to our testing schedule email us at proficiency@measurement.gov.au
How it works
- We prepare, homogenise and characterise the test samples.
- We use reference methods to provide assigned reference values traceable to the International System of Units for selected challenging analytes.
- We collate, statistically analyse and interpret the results returned by participants.
- We prepare a comprehensive report and distribute it to participants.
- We provide advice and educational feedback.
- We send performance summary reports and longer-term historical reports to each participant.