| Autor: |
PETRÍK, Jozef, KADUKOVÁ, Jana, PALFY, Pavol, IVÁNOVÁ, Dana, HORVÁTHOVÁ, Hedviga |
| Předmět: |
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| Zdroj: |
Acta Technica Corviniensis - Bulletin of Engineering; Jul-Sep2013, Vol. 6 Issue 3, p91-96, 6p |
| Abstrakt: |
The value of pH is an important quality control parameter measured in industry and research. The quality of the measurement process can be evaluated in the same manner as any manufacturing process. The aim of submitted work is to analyze the quality of pH measurement. MSA, analysis of uncertainty, t-test and ANOVA were used. Four appraisers measured pH of 10 solutions of HCl and HNO3. The pH meter GRYF 208L with standard electrode THETA 90 HC 113 were used as measurement equipment. Analyzed the process of pH measurement is capable according to MSA. The fine discrimination and high accuracy of used equipment and high pH variability of measured solutions are reasons of high process capability. Low value of index %AV witness good competence of all appraisers. Positive effect of appraisers on the capability was confirmed by t-test and ANOVA. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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