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Download the report (iis10A03TX) of this Proficiency Test on Azo dyes in Textile 

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Summary of this proficiency test:

On 25 May 2009, the proficiency test Azo dyes in Textile(iis10A03TX) was finished. It started on 10 March 2010 (see message “Proficiency Test on Azo dyes in Textile started” on this website) when the samples were distributed.

In this international interlaboratory study 121 participants in 30 different countries have participated.

The participants were asked to analyze the samples on 24 forbidden aromatic amines

The proficiency test report summarises per test, the test results, the analytical methods reported by the participants and the z-scores calculated by i.i.s. for each participant are tabulated. Also, for each test, the calculated summary (e.g. mean, standard deviation and reproducibility) is given.

In the report also an evaluation of the test results is given. Problems encountered in the analyses are mentioned and - where possible - suggestions for quality improvement are formulated. For each test a comparison is made between the results of the group of participants and the requirements given by the relevant standard (e.g. ISO, DIN, ASTM).

Interested parties can order a hard copy of the report; the price for non-participants is Euro 35.