Classification Systems are important for making good quality rubber products.  ASTM – Rubber Guidelines are necessary in ensuring that proper values are not only repeatable but accurate in an lab environment.  Coi Rubber also recommends other testings just as JIS, MILSPEC, and many other OEM guideline, however, a proper ASTM – Rubber Guildline must be […]

This standard is issued under the fixed designation D 471; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision […]