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综合分析了催化转化器评价方法与标准化，提出了催化转化器评价的三个阶段，即催化剂实验室小样评价阶段、单个催化转化器性能评价阶段和催化转化器装车性能评价阶段。指出了催化器装在指定汽车上试验是评价催化转化器的最终阶段。
The evaluation methods and standardization of catalytic converters are comprehensively analyzed. Three stages of evaluation of catalytic converters are proposed, that is, the sample evaluation stage of catalyst laboratory, the performance evaluation stage of single catalytic converter and the evaluation stage of catalytic converter loading performance. It is pointed out that the test of the catalytic converter on a designated vehicle is the final stage of evaluating the catalytic converter.