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2023 Proficiency Test (PT) on Total Metals 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.


 Please download the instructions for the PT iis23P66 here: the letter of instructions and the report form here



Summary of this proficiency test:


On 16 August 2023 the proficiency test on Total Metals in polymers started with 141 participants from 35 different countries. On that date, the samples were dispatched to the laboratories.

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 samples can be analyzed on: Total Antimony as Sb, Total Cadmium as Cd, Total Chromium as Cr, Total Cobalt as Co, Total Copper as Cu, Total Lead as Pb, Total Manganese as Mn, Total Mercury as Hg, Total Nickel as Ni, Total Tin as Sn and Total Zinc as Zn.


The deadline for reporting results is set on 22 September 2023. 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





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