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Proficiency testing study: AQA 22-31 Liquefied Petroleum Gas

May 2022.

This proficiency test is part of the National Measurement Institute's 2022 proficiency testing program for gas mixtures.

Registrations closed 1 March 2022.

This study is limited to 5 participants.

Test materials

Each PT sample will be supplied in a 0.5 L Welker constant pressure sample cylinder. 

Gas samples will contain the following components (nominal amounts only):

  • ethane: ≤ 0.5 %
  • n-butane: ≤ 0.5 %
  • propane: balance

Sample distribution and reporting

We will distribute samples by 1 May 2022. 

You must:

  • submit your measurement results within 6 weeks of receiving the sample
  • return the sample cylinders to us after testing.


The cost to participate is $1550.00. This includes GST and delivery to Australian sites.

You will need to pay extra for: 

  • return freight
  • all international freight and duty charges.

To apply

  1. read our proficiency testing terms and conditions.
  2. email with your:
    • contact name
    • phone
    • postal address
    • delivery address
    • organisation
    • ABN.