前言:化学计量方面需要对标准溶液进行稀释后配制工作溶液的情况相当普遍,浊度仪项目仅是例子之一,本评定过程提供一个类似的思路和方法,供探讨和参考。在日常检定或校准时进行该类型项目的不确定度评定时,只需考虑到影响不确定度的因素,对可忽略不计的评定过程可以简化。 Preface: The stoichiometry needs to dilute the standard solution after the preparation of the working solution is quite common, the turbidimeter project is only one example, this assessment process provides a similar idea and method for discussion and reference. When assessing the uncertainty of a project of this type during routine verification or calibration, only the factors that affect the uncertainty are taken into account and the negligible assessment process can be simplified.