1.1 This standard specifies the method for determining the indentation hardness of plastics according to the Rockwell M, L and R hardness scales using a Rockwell hardness tester. …
JIS K 7202-2:2001 history
2001JIS K 7202-2:2001 Plastics -- Determination of hardness -- Part 2: Rockwell hardness
1995JIS K 7202:1995 Method of rockwell hardness test for plastics