研磨细度、不挥发物含量是决定色漆质量的重要指标,但目前国内很少有关于这两种测试方法在实验室的复现性与可比性研究.根据相关方法标准,组织开展了涂料细度、不挥发物含量的实验室比对工作,并且采用格拉布斯检验法对检测结果进行统计分析.结果显示,研磨细度测量结果的复现性相对较低,其原因可能与方法本身、试验样品、仪器、人员操作都有关;而不挥发物含量测定基本令人满意.
Both grind fineness and non-volatile matter content are the important index of the quality of paint.However,there is seldom study on these two test methods about their reproducibility and comparability.According to the relevant methodological criteria,a laboratory comparison work of the fineness and non-volatile matter content was conducted,and Grubbs'Criterion was introduced to analyze the collected data.The result showed that the reproducibility of grind fineness determinations between laboratories is relatively low,which may be related to the method itself,test samples,instruments,and personnel operation,and the measurement of non-volatile matter content is basically satisfactory.