Proficiency Test on Liquefied Butane started
The report forms and letters of instruction can be downloaded here as Word document. To download a document, please click the right mouse button and choose the "save as" option.
Download the report forms for iis15S02B here: report form and the letter of instructions.
Summary of this proficiency test:
On 27 May 2015 the proficiency test on Liquefied Butane started with 50 participants from 29 different countries. On that date, the samples were dispatched to the laboratories. Enclosed to the samples were the instructions to the participants for this proficiency test, forms for the reporting of the analysis results and the safety data sheet (SDS).
The samples can be analyzed on Propane, n-Butane, 1,3-Butadiene, iso-Butene, 1-Butene, trans-2-Butene,
cis-2-Butene, iso-Pentane, iso-Butane, Propene, Molar Mass, Relative Density @60F and
Vapour pressure @100F.
The deadline for reporting results is set on 26 Junel 2015. A laboratory that reports test results after 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.
NB. The test results can also be reported via our internet based results reporting platform. A login and a password can be requested via email to