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Interlaboratory proficiency testing of tensile and flexuraltesting for cellulose based transformed board material

Published online by Cambridge University Press:  14 November 2012

B. Aydemir  and
S. Fank
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Abstract

Optimum safety and reliability can be achieved by coordinating an interlaboratoryproficiency testing among different laboratories. Testing laboratories need to verifytheir test procedures and testing capability for reliable results. In this study,equivalent samples are prepared by cellulose based transformed board material used intransformers as electrical isolation material. Randomly selected test samples havingspecified dimensions are sent to the participant laboratories. Then they are tested andresults are analyzed according to previously defined parameters. Each laboratory appliedtensile and flexural tests on the samples according to procedures given in IEC 60641-2,2004 and IEC 60763-2, 2007 standards respectively. Test results are evaluated according tosame procedures explained in related standards by the participant laboratories. TUBITAKUME Material Testing Laboratory being the pilot laboratory collected to the all evaluatedresults including associated measurement uncertainties. Then the collected resultsevaluated according to ISO 17043, 2010 are reported by each laboratory as a part of theproficiency test report. Z-scores of the participant laboratories are presented.

Keywords

Transformed boardproficiency testingtensile testingflexural testing
Type
Research Article
Information
International Journal of Metrology and Quality Engineering , Volume 3 , Issue 2 , 2012 , pp. 67 - 70
Copyright
© EDP Sciences 2012

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References

EN ISO 17025, General requirements for the competence of testing and calibration laboratories, 2005
IEC 60641-2, Pressboard and presspaper for electrical purposes – Part 2 : Methods of tests – 2nd edition, 2004
IEC 60763-2, Specification for laminated pressboard – Part 2 : Methods of test, edition 2.0, 2007
B. Aydemir, S. Fank, C. Vatan, Proficiency technical protocol for tensile and flexural strength, UME-KV-10-03 (TUBITAK UME, 2011)
EN ISO/IEC 17043, Conformity assessment – General requirements for proficiency testing, 2010
B. Aydemir, S. Fank, Malzeme Deneylerinde (Çekme-Eğme) Ölçüm Belirsizliğinin Hesaplanması Eğitim Dokümanı – G2KV-100 (TUBITAK UME, Haziran, 2011)
P704, TÜRKAK Yeterlilik Deneyleri ve Laboratu-varlararası Karşilatşırma Programları Prosedürü, Rev. 3, 26.01.2006
B. Aydemir, S. Fank, Proficiency test report for tensile and flexural strength, UME-KV-11-01 (TUBITAK UME, 2011)