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为了准确测定公路路面基层稳定材料中灰剂量,针对现在常用的EDTA滴定法,本文从试剂的配制与贮存、滴定终点的判断、标准曲线的制作、样品的检测四个方面阐述了准确测定出公路路面基层稳定材料中灰剂量时应注意的环节。尤其对标准曲线的制作过程中检测人员容易误解的问题,进行了详尽阐述并举例说明。
In order to accurately determine the amount of ash in the stable material of highway pavement, aiming at the commonly used EDTA titration method, this paper elaborates the accurate determination of the road from four aspects of the reagent preparation and storage, the determination of the titration end point, the production of the standard curve, Pavement should pay attention to the amount of ash in the stable material of pavement. In particular, the standard curve of the production process of inspectors easily misunderstood issues were elaborate and give an example.