Abstract
ABSTRACT A testing⋅inspection is one of the important in the industry, owing to determine the reliability and directivity of testing⋅inspection results. Therefore, the quality assurance and quality control (QA/QC) work which performed by personnel notdirectly in the inventory compilation⋅development, in testing⋅inspection must be thoroughly considered. Some agenciesfor environmental test inspection, they sometimes misunderstood that the QA/QC was ended with proficiency testingperformance and on-site assessment by a director. Thus, results were often calculated without QA/QC work by selfmanual when conducting test. The objective of this study was to improve reliability of testing and inspection agencythrough the QA/QC case study which basically performed to raising reliability of testing and inspection agency. In thisstudy, it increased reliability of result by verifying calibration curve (IC, ICV, CCV), blank, accuracy (LCS, MS) andprecision as QA/QC performance, while performing investigation of soil contamination in mining areas. This studysuggests that reliability establishing method of test result and management method of analysis process, through the QA/QC instance of testing agency.Key words :QA/QC, Testing, LCS, MS
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