Used when Type A readings exceed 90; suitable for hard rubber and plastics. Low-hardness rubber
Note: JIS K 6253-3 does not cover IRHD (International Rubber Hardness Degree) methods—those are found in JIS K 6253-2. jis k 6253-3
In the world of polymer engineering and quality control, precision is paramount. When it comes to measuring the hardness of rubber, vulcanized thermoplastics, and elastomers, one standard stands out in Asian manufacturing and global supply chains: . Used when Type A readings exceed 90; suitable
A common source of confusion is how JIS K 6253-3 compares to ISO 7619-1 and ASTM D2240. While they are often correlated, they are not identical. When it comes to measuring the hardness of
While Part 2 deals with "dead load" methods (using heavy weights and indentors to measure IRHD), Part 3 deals with the portable, spring-loaded instruments known as durometers.
is the Japanese Industrial Standard for determining the hardness of vulcanized or thermoplastic rubber using the Durometer method . This standard is closely aligned with the international standard ISO 48-3 (formerly ISO 7619-1). Core Content & Scope