BS Standards BS EN ISO 2039-2:2000 pdf BS EN ISO 2039-2:2000,Plastics - Determination of hardness - Part2:Rockwell hardness. BS EN ISO 2039-2:2000 specifies a method for determining the indentation hardness of plastics by means of the Rockwell hardness tester using the Rockwell M, L... 06-08 Read More