ranking iranian accredited laboratories with proficiency tests using pr0methee method

the rapid pace of changing technology is leading to high rate of import and export between different countries. in outsourcing governmental organizations duties to private sectors, it is a need to control sectors and they should be under assessment policy. this research has been developed to show how the accredited laboratories of iranian standard (isiri) can be assessed for their technical servicing using the promethee (preference ranking organization method for enrichment evaluations) method in combination with proficiency testing inter- laboratories comparison, in order to rank them for an urgent or crucial need of testing any kind of goods or products under compulsory regulation or national standard for their quality or safety aspect. the proposed approach, therefore, allows a decision to be made with confidence that the alternative (laboratory) chosen has best performance for conformity assessment. some extensions of this research might be of interest. while in this paper, we only considered the paint and varnish accredited laboratories process can be applied to other sections of the isiri which consist of about 600 accredit laboratories. the other extension of this research could be combined with topsis and promethee for solving such a ranking problems.