Otsuki et al. [10] found that 0.1 M

大月等。[10]发现，在OPC的情况下，0.1 M AgNO3溶液是最合适的浓度，以便在无氯和无氯区域之间提供视觉上最清晰的边界。从文献[8-13]中报告的数据得知，硝酸银检测到的颜色变化边界处的总氯含量在很<br>宽的范围内变化，以质量计为0.19％[14]至1.41％[11]。取决于样品制备和测量技术，其含量为普通硅酸盐水泥的0.02％[11]至0.5％[10]。

Otsuki et al. [10] found that 0.1 M AgNO3 solution is the most appropriate concentration for giving the visually clearest boundary between the chloride- and chloride-free zones in the case of OPC. From the data reported in the literature [8–13] it is known that the total chloride content at the colour change boundary detected by silver nitrate varies in a<br>wide range, from 0.19% [14] to 1.41% [11] by the mass of ordinary Portland cement, and from 0.02% [11] to 0.5% [10] by mass of concrete, depending on the sample preparation and the measurement technique.

大冢等人。[10] 发现0.1 M AgNO3溶液是在OPC的情况下使无氯化物区和无氯化物区之间的视觉上最清晰的边界的最合适浓度。从文献[8–13]中报告的数据可知，硝酸银检测到的变色边界处的总氯化物含量在<br>根据样品制备和测量技术，范围很广，普通硅酸盐水泥质量为0.19%[14]至1.41%[11]，混凝土质量为0.02%[11]至0.5%[10]。