Interlaboratory comparisons to demonstrate the competence of two similar mobile laboratories

In order to maintain the RENAR (Romanian Accreditation Association) accreditation, each accredited laboratory must periodically participate in interlaboratory testing programs carried out with specialized providers or similar laboratories. December 2021, an comparison field of environmental protection was organized by INCD ISEMEX PETROȘANI. The current paper examines similarity results two auto-laboratories, sampling points demonstrate competence During test session, immission measurements (nitrogen dioxide, nitrogen monoxide, carbon monoxide and sulphur dioxide), ambient noise determination suspended dust concentration were performed. main objective tests is comply limits established bilateral protocol, all these can be processed achieved situ due systems endowing which integrate performed situ. Results study indicate very close values found mobile laboratories, leads performance requirement for components analysed, namely coefficients variation below 20%.