Proficiency Test on Liquefied Propane started

The letter of instructions can be downloaded  here as a pdf document. To download a document, please click the right mouse button and choose the "save as" option.

Download the instuctions for iis17S03P here: The letter of instructions and the report form here.

Download the instuctions for iis17S03S here: The letter of instructions and the report form here.

Summary of this proficiency test:

On 4 October 2017 the proficiency test on Liquefied Propane starts with 50 participants from 27 different countries and the proficiency test on Sulphur (total) in LPG starts with 10 participants from 6 different countries.

On that date, the samples were dispatched to the laboratories. Enclosed to the sample is the material safety data sheet (MSDS).

Please confirm sample receipt as soon as you have received and checked the contents of the sample package via Please enter the date of receipt and press the "save date" button.

The sample iis17S03P can be analyzed on: Ethane, Propane, Propene, n-Butane, iso-Butane, n-Pentane, iso-Butene, 1-Butene, Molar Mass, Relative Density at 60F, Vapour pressure at 100F / at 40°C, Ideal Gross/Nett Heating Value and MON.

The sample iis17S03S can be analyzed on: Total Sulphur.

The deadline for reporting results is set on 10 November 2017. A laboratory that reports test results after the deadline will definitely not get direct feedback in case any of its results are suspect! So be in good time to get the most out of this proficiency test.

The test results should be reported via our internet based results reporting platform. A login and a password can be requested via email to