Two national standards for butadiene rubber are released
Recently, the national standard GB/T 8659-2018 “butadiene rubber (BR) 9000” and GB/T 8660-2018 “solution polymerization type butadiene rubber (BR) evaluation method” drafted by Yanshan Petrochemical Inspection and Measurement Center officially The two national standards will be officially implemented on July 1 and November 1.
According to reports, this revision of the national standard for the first time included the evaluation of vulcanization characteristics into the butadiene rubber evaluation system, and updated the corresponding compounding agent. According to years of production practice and quality data analysis, the frequency of analysis of physical properties was reduced, and the frequency was reduced. Analysis cost of the industry. At the same time, through the investigation of the unreasonable items of new analytical methods in international standards, operational risks are avoided.
After the revision, the overall level of the two national standards for butadiene rubber has reached the international advanced level, which is conducive to promoting technological progress of domestic enterprises, stabilizing product quality and enhancing the competitiveness of products in the international market.