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IZVEDBA MEDLABORATORIJSKE PRIMERJAVE
ID GERKMAN, MATEJ (Author), ID Pušnik, Igor (Mentor) More about this mentor... This link opens in a new window

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MD5: E7A4670D4360BB6B52053C673D8C0395
PID: 20.500.12556/rul/490b53a9-1e54-405e-bcf2-88eb31201ad3

Abstract
V zaključnem delu je opisan postopek mednarodne medlaboratorijske primerjave s kalibracijo sevalnega termometra. Zahteve za medlaboratorijske primerjave so napisane v mednarodnem standardu SIST EN ISO/IEC 17043:2010. Opisan je postopek Laboratorija za metrologijo in kakovost (LMK), ki temelji na omenjenem mednarodnem standardu. LMK je nacionalni etalon za termodinamično temperaturo in organizira medlaboratorijske primerjave oziroma preskušanja usposobljenosti. Namen medlaboratorijske primerjave je ponuditi drugim laboratorijem dodatna sredstva za oceno njihove sposobnosti, bodisi za ocenitev s strani akreditacijskih organov ali za njihov notranji process zagotavljanja kakovosti. Opisana medlaboratorijska primerjava se je pričela jeseni 2014 s pošiljanjem vabil kalibracijskim laboratorijem v regiji. Nato je bilo potrebno napisati protokol medlaboratorijske primerjave in ga poslati v pregled zainterisiranim laboratorijem. Pred pričetkom medlaboratorijske primerjave je bil sevalni termometer Minolta Cyclops 300AF umerjen v LMK. Potrebno je bilo organizirati dostavo do udeležencev ter priskrbeti ATA CARNET dokumentacijo, ki je potrebna za začasni uvoz in izvoz blaga brez carinskih postopkov. Prvi udeleženec, Metroteka Zagreb, je inštrument prejel v oktobru 2014 in izvedel kalibracijo. Po končani kalibraciji je bil instrument poslan drugemu udeležencu – Fakulteti za fiziko v Beogradu. Zaradi carinskih zapletov je inštrument prispel v Beograd v decembru 2014. Konec decembra je bil vrnjen v LMK. Po koncu medlaboratorijske primerjave je bil sevalni termometer ponovno umerjen v LMK. Po prejemu rezultatov udeležencev, so bili le-ti obdelani in ponazorjeni v grafih ter posredovani udeležencem. Bistvo rezultatov je število En, na podlagi katerega se oceni udeležence. Pri obeh udeležencih je bila absolutna vrednost števila En manjša od 1, kar pomeni, da so udeleženci uspešno opravili meritve in s tem preskus usposobljenosti, kar je pogoj za akreditacijo njihovih kalibracijskih merilnih zmogljivosti.

Language:Slovenian
Keywords:: SIST EN ISO/IEC 17043, medlaboratorijska primerjava, sevalni termometer, kalibracija, En število
Work type:Bachelor thesis/paper
Organization:FE - Faculty of Electrical Engineering
Year:2015
PID:20.500.12556/RUL-30714 This link opens in a new window
Publication date in RUL:24.04.2015
Views:2096
Downloads:494
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Secondary language

Language:English
Title:PERFORMANCE OF INTERLABORATORY COMPARISON
Abstract:
In this thesis I have described the procedure of international intercomparison for calibration of the radiation thermometer. Requirements for the intercoparison are written in the international standard SIST EN ISO/IEC 17043:2010. Thesis describer the procedure of the Laboratory of Metrology and Quality (LMK), based on international standard SIST EN ISO/IEC 17043:2010. LMK is the national standard laboratory for thermodynamic temperature and organizes intercomparisons or proficiency testings (PT) with the objective to offer other laboratories additional means to assess their ability of competent performance either for the purpose of the assessment by accreditation bodies or for their internal quality assurance process. Described intercomparison was launched in autumn 2014, with sending the invitations to the calibration laboratories in the region. After that it was necessary to write a protocol of the intercomparison and send it to interested laboratories. Before the start of intercomparison the radiation thermometer Minolta Cyclops 300AF was calibrated at LMK. It was necessary to organize the delivery to the participants and provide ATA CARNET documentation. The first participant – Metroteka Zagreb received the thermometer in October 2014 and carried out calibration. After finishing the calibration the instrument was sent to the next participant – Faculty of Physics in Belgrade. Due to customs complications instrument arrived in Belgrade in December 2014. At the end of December the instrument was returned to LMK and the final calibration was carried out. After receiving results of the participants, they were statistically analyzed and ilustrated in the graphs. The essence of the result is the En number. At both participants the absolute value of the En number was less than 1, which means that the participants successfully carried out measurements and therefore proficiency testing, which represents a basis for accreditation of their calibration measurement capabilities.

Keywords:SIST EN ISO/IEC 17043:2010, intercomparison, radiation thermometer, calibration, En number

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