Experimental Study on Determination of Harmful Substances in Glass Beads Used for Road Marking
In order to identify the influence factors of the test operation on the test results in the determination of harmful substances in glass beads used for road marking,ICP-AES was used to detect the samples.The uncertainty evaluation method is used to analyze the testing process,identify the source of uncertainty,evaluate the uncertainty components,synthesize the uncertainty,and calculate the ex-tended uncertainty.The evaluation results show that the contribution of uncertainty to the formulation of standard working solution is the largest,and the uncertainty of repeatability determination solution is the second.According to the evaluation results,the key points in the process of test standard solution preparation,mixed standard solution and standard curve solution preparation,test detection and da-ta processing are carried out,to improve the accuracy of determination of lead,arsenic,antimony and other harmful substances with glass beads for road marking.
glass beads for road markingICP-AESevaluation of uncertaintyharmful substances
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