JIS K 6380 establishes a standardized "call-out" system for rubber materials. Much like the international or the American ASTM D2000
The standard classifies rubber materials based on their physical properties, such as hardness and tensile strength, to ensure consistency across industrial products. jis k 6380 pdf
While broad, JIS K 6380 explicitly excludes certain rubber forms: Sponge rubber Ebonite (hard rubber) O-rings (typically covered by JIS B 2401 ) Material Classifications JIS K 6380 establishes a standardized "call-out" system
: The standard uses alphabetical codes to represent different materials, such as for CR, and for Natural Rubber. Intertek Inform Standard Evolution Current Version JIS K 6380:2014 , which superseded the 1999 version. Referenced Standards : It relies on other JIS testing methods, such as JIS K 6253 (hardness), JIS K 6251 (tensile stress-strain), and JIS K 6257 (heat ageing). Intertek Inform For practical application, manufacturers like Togawa Rubber Tigers Polymer Intertek Inform Standard Evolution Current Version JIS K
Known for excellent weather and flame resistance.