We guarantee the equality and homogeneity of the samples and the statistical treatment, to ensure the equality of all participants.
Test samples are
prepared in IQS
, who guarantees sample batch homogeneity and stability, and sent to each participant.
Parameters to be analysed
are content of boron, lithium, fluorine, chloride, sulphate, silicate, ammonium, sodium, copper and iron.
Each laboratory receives a
4-digit secret code
to identify exclusively and privately its own results.
Two exercises per year
are programmed (April and October), with two lots of samples in each round.
Statistical treatment of results
is done according to ISO 13528:2005 “statistical methods for use in proficiency testing by inter-laboratory comparisons”.
Detailed results for each sample and parameter are delivered to each participant in form of
tables and graphics.
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Vía Augusta 390, 08017 Barcelona (SPAIN)
Phone. +34 932 672 133 Fax +34 932 056 266