Proficiency Test on Textile phenols OPP/PCP started

The letter 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 instuctions for iis15A07 here: The letter of instructions and the report form.

Summary of this proficiency test:

On 18 November 2015 the proficiency test on  Textile phenols OPP/PCP  started with 93 participants from 22 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.

The samples have to be analyzed on:ortho-Phenylphenol (OPP), Pentachlorophenol (PCP), 2,3,4,5-Tetrachlorophenol, 2,3,4,6-Tetrachlorophenol and 2,3,5,6-Tetrachlorophenol.

The deadline for reporting results is set on 18 December 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.
The test results should be reported via our internet based results reporting platform. A login and a password can be requested via email to