The revision of trade standard will play the role of regularization for the markets and provide a good guidance for the selection of users.

• 此行业标准的修订必将对乙丙共聚物粘度指数改进剂的市场起到良好的规范作用,也可为用户选择乙丙共聚物粘度指数改进剂提供更好的指导。