This proficiency test is part of our 2024 proficiency testing (PT) program for gas mixtures. The study is covered by our PT provider accreditation (ISO 17043). 

Registrations close 1 August 2024.

Study options

Study options available:

  • PT study
  • PT study with the PT sample as a chemical reference material (CRM)
  • calibration standard and supply of a PT sample.

Test materials

We’ll prepare and distribute PT samples in a 5 L gas cylinder with the valve outlet: AS2473 type 20.

We’ll supply these sample cylinders for the:

  • PT study at around 25 bar pressure 
  • PT study with PT sample as a CRM at greater than 80 bar pressure
  • calibration standard and supply of a PT sample
    • at greater than 80 bar pressure for the CRM
    • at around 25 bar pressure for the PT. 

Gas samples are based on south-east Australian pipeline natural gas and will contain these components (nominal amounts only):

  • Nitrogen, Carbon Dioxide and Propane each at < 2.5 %mol/mol 
  • Ethane at < 6 %mol/mol
  • iso-Butane, n-Butane, iso-Pentane, n-Pentane, and n-Hexane each at < 0.1 %mol/mol
  • Methane as balance.

Sample distribution and reporting 

We’ll: 

  • distribute samples by 1 October 2024
  • issue the PT report in February 2025.

Once you’ve completed the study you must:

  • submit your measurement results by 1 December 2024
  • include a brief description of the test method
  • include an expanded measurement uncertainty estimate, if applicable.

For both the PT study and the calibration standard and supply of a PT sample, you must then return the sample cylinders by 15 December 2024. 

For PT studies with the PT sample as a CRM: 

  • you don’t have to return the cylinder becomes as it becomes your property
  • we’ll give you a CRM certificate after we report the PT results. 

Cost

The cost to participate is:

  • PT study $1,600 
  • PT study with PT sample as a CRM $5,100
  • calibration standard and supply of a PT sample $5,750.

The price includes:

  • goods and services tax (GST)
  • delivery to Australian sites.

You must pay extra for:

  • return freight
  • all international freight and duty charges.

To apply

Read out proficiency terms and conditions. Then email gas@measurement.gov.au with your:

  • contact name
  • phone
  • delivery address
  • organisation
  • ABN, if you’re an Australian participant.