Industrial rubber packings and similar industrial rubber products.
Determines resistance to indentation using IRHD or Durometer methods. JIS K 6251
Materials specifically for sponge rubber, ebonite, and O-rings (the latter often governed by JIS B 2401). Classification of Rubber Materials jis k 6380 pdf
High-performance Nitrile Rubber (NBR) often falls here.
Typically includes materials like EPDM or Natural Rubber (NR). JIS K 6380:1999 Rubber packing material - Intertek
Offers detailed standard histories and documentation for industrial users. JIS K 6380:1999 Rubber packing material - Intertek Inform
Evaluates how physical properties change over time at high temperatures. JIS K 6258 Originally established in 1976
Official copies of the are typically available through authorized standards organizations:
Provides standard downloads and historical versions .
The standard defines the performance classes and physical property requirements for rubber materials used in industrial packings and similar products. Originally established in 1976, the most current version is JIS K 6380:2014 , which provides a systematic classification for vulcanized or thermoplastic rubber materials based on their specific industrial applications. Core Scope and Applications