TestQual is a Spanish company specialised in quality assurance for laboratory research. For more than ten years we have been organising, distributing and reporting chemical proficiency studies. These proficiency studies compare the results from laboratories all over the world, so each laboratorie can measure its analytical proficiency and test the quality of its analyses.


TestQual also produces reference materials, always certificated, tested and guaranteed for homogeneity and stability. These materials are used to check the quality of analyses.

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  • SANTE 11945/2015
    SANTE 11945/2015

    Document No. SANTE 11945/2015 (Implemented by 01.01.2016)

    Method Validation and Quality Control Procedures for Pesticide Residues Analysis in Food and Feed. DOWNLOAD HERE