Quality Progress - May 2014 - 48

MEASURE FOR MEASURE BY CHRISTOPHER L. GRACHANEN Pass or Fail Understanding calibration certificate content and requirements FOR MANY quality professionals, the procedure. This type of calibration application cannot be ascertained to only interaction you have with a calibra- certificate is typically provided with a determine whether corrective action is tion laboratory-besides procuring a ser- new piece of test equipment unless ad- warranted. vice or coordinating shipping logistics-is ditional calibration data are requested evaluating the calibration certificate that in a purchase order. accompanies a piece of test equipment after it returns from calibration. Because a calibration compliance 3. Calibration with data and uncertainties. For each measurement parameter, this certificate also provides certificate provides only a summary an accompanying measurement uncer- The calibration certificate-commonly statement of compliance without any tainty. This uncertainty gives the proba- referred to as a calibration report-is the measurement data obtained during a bility (the likelihood) that the obtained documented evidence that a piece of test calibration activity, it does not fulfill the measurement value falls within stated equipment was, at some point, determined requirements of many published regula- tolerances, as inherent of the measure- to be within or out of its intended operat- tory guidance documents associated with ment process. It includes all significant ing specifications. evaluating and using calibration results. contributors of error associated with Calibration validation doesn't refer to 2. Calibration with data certificate. the process, such as environmental factors, repeatability and reproducibility. the unit's functional ability to measure an This certificate includes measurement alternating voltage or produce a sinusoidal data and calibration tolerances. It waveform. Rather, it's the unit's ability to provides measurement data in terms Standards guidance measure or produce a numerical value of magnitude and direction so that an Of the several major guidance documents associated with a phenomenon, such as a impact assessment can be performed in dealing with calibration laboratory opera- measurement parameter, to within specific the case that a measurement parameter tions and services, ISO/IEC 17025:2005- limits. These limits are inherent in a unit's is found to be out of tolerance. Without General requirements for the competence published specifications and are known as magnitude and direction information, of testing and calibration laboratories is tolerances during the calibration activ- the impact on a customer measurement the global standard for calibration labo- ity. As a result of a calibration activity, an ratories engaged in providing accredited overall status will typically be provided calibration services. The standard specifies showing whether a piece of test equip- many requirements for quality system ment passed or failed the activity. Calibration certificates come in three major types, with variations of each type reflecting the calibration provider's interpretation content for an accredited calibration laboratory. One of the topics addressed by the standard is calibration certificate content. According to Clause 5.10.2- of the services rendered: Test reports and calibration 1. Calibration compliance certificates, each test report certificate. This cer- or calibration certificate should tificate states that a piece include at least the following infor- of test equipment has mation, unless the laboratory has been found to have fulfilled valid reasons for not doing so:1 applicable expectations-a * A title (such as "Test Report" or piece of test equipment has met "Calibration Certificate"). the original equipment manufac- * The name and address of the labora- turer's (OEM) published specifica- tory and the location where the tests tions per the OEM's recommended and calibrations were carried out, if 48 QP * www.qualityprogress.com http://www.qualityprogress.com

Table of Contents for the Digital Edition of Quality Progress - May 2014

Up Front
LogOn
Expert Answers
Keeping Current
Mr. Pareto Head
Catching Fire
Making the Rounds
Plan of Attack
Virtual Voices
Innovation Imperative
Measure for Measure
Quality in the First Person
Career Corner
Standards Outlook
QP Toolbox
QP Reviews
One Good Idea

Quality Progress - May 2014

http://www.nxtbook.com/naylor/ASQM/ASQM0719
http://www.nxtbook.com/naylor/ASQM/ASQM0619
http://www.nxtbook.com/naylor/ASQM/ASQM0519
http://www.nxtbook.com/naylor/ASQM/ASQM0419
http://www.nxtbook.com/naylor/ASQM/ASQM0319
http://www.nxtbook.com/naylor/ASQM/ASQM0219
http://www.nxtbook.com/naylor/ASQM/ASQM0119
http://www.nxtbook.com/naylor/ASQM/ASQM1218
http://www.nxtbook.com/naylor/ASQM/ASQM1118
http://www.nxtbook.com/naylor/ASQM/ASQM1018
http://www.nxtbook.com/naylor/ASQM/ASQM0918
http://www.nxtbook.com/naylor/ASQM/ASQM0818
http://www.nxtbook.com/naylor/ASQM/ASQM0718
http://www.nxtbook.com/naylor/ASQM/ASQM0618
http://www.nxtbook.com/naylor/ASQM/ASQM0518
http://www.nxtbook.com/naylor/ASQM/ASQM0418
http://www.nxtbook.com/naylor/ASQM/ASQM0318
http://www.nxtbook.com/naylor/ASQM/ASQM0218
http://www.nxtbook.com/naylor/ASQM/ASQM0118
http://www.nxtbook.com/naylor/ASQM/ASQM1217
http://www.nxtbook.com/naylor/ASQM/ASQM1117
http://www.nxtbook.com/naylor/ASQM/ASQM1017
http://www.nxtbook.com/naylor/ASQM/ASQM0917
http://www.nxtbook.com/naylor/ASQM/ASQM0817
http://www.nxtbook.com/naylor/ASQM/ASQM0717
http://www.nxtbook.com/naylor/ASQM/ASQM0617
http://www.nxtbook.com/naylor/ASQM/ASQM0517
http://www.nxtbook.com/naylor/ASQM/ASQM0417
http://www.nxtbook.com/naylor/ASQM/ASQC12518
http://www.nxtbook.com/naylor/ASQM/ASQM0317
http://www.nxtbook.com/naylor/ASQM/ASQM0217
http://www.nxtbook.com/naylor/ASQM/ASQM0117
http://www.nxtbook.com/naylor/ASQM/ASQM1216
http://www.nxtbook.com/naylor/ASQM/ASQM1116
http://www.nxtbook.com/naylor/ASQM/ASQM1016
http://www.nxtbook.com/naylor/ASQM/ASAC0016
http://www.nxtbook.com/naylor/ASQM/ASQM0916
http://www.nxtbook.com/naylor/ASQM/ASQA0016
http://www.nxtbook.com/naylor/ASQM/ASQM0816
http://www.nxtbook.com/naylor/ASQM/ASQM0716
http://www.nxtbook.com/naylor/ASQM/ASQM0616
http://www.nxtbook.com/naylor/ASQM/ASQM0516
http://www.nxtbook.com/naylor/ASQM/ASQM0416
http://www.nxtbook.com/naylor/ASQM/ASQM0316
http://www.nxtbook.com/naylor/ASQM/ASQM0216
http://www.nxtbook.com/naylor/ASQM/ASQM0116
http://www.nxtbook.com/naylor/ASQM/ASQM1215
http://www.nxtbook.com/naylor/ASQM/ASQM1115
http://www.nxtbook.com/naylor/ASQM/ASQM1015
http://www.nxtbook.com/naylor/ASQM/ASQM0915
http://www.nxtbook.com/naylor/ASQM/ASQM0815
http://www.nxtbook.com/naylor/ASQM/ASQM0715
http://www.nxtbook.com/naylor/ASQM/ASQM0615
http://www.nxtbook.com/naylor/ASQM/ASQM0515
http://www.nxtbook.com/naylor/ASQM/ASQM0315
http://www.nxtbook.com/naylor/ASQM/ASQM0215
http://www.nxtbook.com/naylor/ASQM/ASQM0115
http://www.nxtbook.com/naylor/ASQM/ASQM1214
http://www.nxtbook.com/naylor/ASQM/ASQM1114
http://www.nxtbook.com/naylor/ASQM/ASQM1014
http://www.nxtbook.com/naylor/ASQM/ASQM0914
http://www.nxtbook.com/naylor/ASQM/ASQM0814
http://www.nxtbook.com/naylor/ASQM/ASQM0714
http://www.nxtbook.com/naylor/ASQM/ASQM0614
http://www.nxtbook.com/naylor/ASQM/ASQM0514
http://www.nxtbook.com/naylor/ASQM/ASQM0414
http://www.nxtbook.com/naylor/ASQM/ASQM0314
http://www.nxtbook.com/naylor/ASQM/ASQM0214
http://www.nxtbook.com/naylor/ASQM/ASQM0114
http://www.nxtbook.com/naylor/ASQM/ASQM1213
http://www.nxtbook.com/naylor/ASQM/ASQM1113
http://www.nxtbook.com/naylor/ASQM/ASQM1013
http://www.nxtbook.com/naylor/ASQM/ASQM0913
http://www.nxtbook.com/naylor/ASQM/ASQM0813
http://www.nxtbook.com/naylor/ASQM/ASQM0713
http://www.nxtbook.com/naylor/ASQM/ASQM0613
http://www.nxtbook.com/naylor/ASQM/ASQM0513
http://www.nxtbook.com/naylor/ASQM/ASQM0413
http://www.nxtbook.com/naylor/ASQM/ASQM0313
http://www.nxtbook.com/nxtbooks/naylor/ASQM0213
http://www.nxtbook.com/nxtbooks/naylor/ASQM0113
http://www.nxtbook.com/nxtbooks/naylor/ASQM1212
http://www.nxtbook.com/nxtbooks/naylor/ASQM1112
http://www.nxtbook.com/nxtbooks/naylor/ASQM1012
http://www.nxtbook.com/nxtbooks/naylor/ASQM0912
http://www.nxtbookMEDIA.com