A proposed method using t-test for stability check in proficiency testing in tensile and hardness tests
نویسندگان
چکیده
Proficiency testing is a very powerful tool for laboratories to continuously monitor the validity of results, and considered one technical requirements accreditation according ISO 17025. Stability check test samples or artefacts important ensure that these are fit purpose, give consistent performance over specified period time. The aim this work propose method stability using t-test as an alternative followed in 13528. proposed applied on proficiency Rockwell hardness test, Brinell tensile both PVC (Polyvinyl Chloride), steel reinforcement bars. results analyzed, compared with obtained from convenient excelled by main advantage it independent participants’ results; depends only lab, which performs
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ژورنال
عنوان ژورنال: Journal of Measurement Science and Applications (JMSA)
سال: 2023
ISSN: ['2805-2536', '2805-2544']
DOI: https://doi.org/10.21608/jmsa.2023.288127