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近几年,许多标准作出了修改。ASTM E2446标准的核心修改是重新规定CR系统分类性能参数与指标,ASTM E2445标准的主要修改是作出了试验项目的分类,ASTM E2597的主要修改是关于试验项目的具体要求。ASTM E2002标准主要修改是给出了增加了插入确定测定不清晰度值方法和给出了延伸到更细直径丝对设计。需要认识到的是,某些重要修改可能仍旧是现阶段、部分人员的认识与经验。
In recent years, many standards have been revised. The core modification of the ASTM E2446 standard is to re-define the performance parameters and indicators for the classification of CR systems. The major revision of the ASTM E2445 standard is the classification of test items. The major modification of ASTM E2597 is the specific requirements of the pilot project. The major modification of the ASTM E2002 standard is the addition of a method of determining the value of indeterminate determination of insertion determinations and the design of a wire pair that extends to a finer diameter. What needs to be realized is that some important changes may still be the knowledge and experience of some people at this stage.