Proficiency Test on Phosphorus Flame Retardants in Polymers 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. The report form can be downloaded on this website when the deadline has expired.

Download the instuctions for iis18P01 here: The letter of instructions and the report form here .

Summary of this proficiency test:

On 17 January 2018 the proficiency test on Phosphorus Flame Retardants in Polymers started with 42 participants from 18 different countries. On that date, the samples were dispatched to the laboratories.

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

The samples can be analyzed on: TBEP, TBP, TCEP, TCP, TCPP, TDCPP, TPP and IPTPP.

The deadline for reporting results is set on 23 February 2018. 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 ID and a password can be requested via email to