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根据GB/T 3180.15-2006(IDT ISO 10545-15:1995)《陶瓷砖试验方法第15部分:有釉砖铅和镉溶出量的测定》标准方法进行陶瓷砖镉(Cd)溶出量的测定,依据JJF 1059.1-2012《测量不确定评定与表示》和CNAS-GL06:2006《化学分析中不确定度的评估指南》对测定结果进行不确定度的评估。通过分析影响原子吸收分光光度计测定溶液中镉(Cd)含量的因数,建立数学模型及计算不确定度分量,确定扩展不确定度,给出镉(Cd)溶出量测定结果的表达方式,以评估及监测实验室的检测能力和满足客户对检测结果精度的要求。
According to the standard method of GB / T 3180.15-2006 (IDT ISO 10545-15: 1995) “Test methods of ceramic tiles - Part 15: Determination of leaching amount of glazed brick lead and cadmium” - Determination of cadmium (Cd) The uncertainty of the measurement was evaluated in accordance with JJF 1059.1-2012 “Measurement Uncertainty Assessment and Expression” and CNAS-GL06: 2006 “Guide to Evaluation of Uncertainty in Chemical Analysis”. By analyzing the factors affecting the determination of cadmium (Cd) in solution by using atomic absorption spectrophotometer, a mathematical model was established and the components of uncertainty were calculated. The uncertainty of expansion was determined and the expression of cadmium (Cd) Evaluate and monitor laboratory testing capabilities and meet customer requirements for accuracy of test results.