Quality of calibration (original) (raw)
Calibration of measudng and test equipment is lhe fundamental requirement for testing ancl measurements and thereby quality of manufacturing anSl seruices. Although, calibration was in vogue fur some fonn or other for centuries, the releaso of ISO 9000 Standards for quality system in the year 1987 has given a new impetus for,the calibration activity as a whole. It is now well understood that calibration is an important requirement to be fulfilled for qualify in every organization. Clause 4.11 in ISO 9000 Standards on oalibration is one of the longest and toughest requirements amongst the 20 elements in the standard. Ih order to give additional'guidance, ISO has also brought out standard ISO 10012-1. : L992 entitled "Quality Assurance Requirernents for Measuring Equipment" wldch is now accepted all over the world. ISO 10012.1 has stipulated the quality assul'ance requilements and guidance not only for the measuring equipment but 1 'also for the calib'ration system. The calibration system comprises of all asfects suolt as plaruring and silection of equiprnenl calibration procedures, lecords, labeling calibration intervals and traceability. Traceabitify of measurements alone cannot ensure quality of calibrations. This has also been amply made clear by ISO/IBC Guide 25 entitled 'lGeneral.criteria for operation of testing laboratories" which is the guidfurg document for
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