(ASTM D 2240)
(ASTM D 2240)
(DIN 53505)
(DIN 53505)
(ASTM 1415)
References:
Shore A/D - Determination of indentation hardness by means of a durometer (Shore hardness) ISO 868:2003 specifies a method for the determination of the indentation hardness of plastics and ebonite by means of durometers of two types: type A is used for softer materials and type D for harder materials. The method permits measurement either of the initial indentation or of the indentation after a specified period of time, or both.
IRHD (International Rubber Hardness Degrees)
Is a method to characterize an elastomer by its resistance to penetration of a known geometry indenter by a known force. The microtechnique is reproduced on irregular, as well as flat, surfaces, and on cross sections as small as 1mm in thickness (.4"). The readings are similar, but not identical, to Shore (TM, Wilson-Shore Instruments)
ASTM D 1415
http://www.astm.org/Standards/D1415.htm
ASTM D 2240
http://www.astm.org/Standards/D2240.htm
DIN 53505
http://www.beuth.de/en/standard/din-53505/24622623
ISO 7619
http://www.iso.org/iso/catalogue_detail.htm?csnumber=50756
Comprendiendo los metodos "IRHD" y "Shore" usados para la medicion de dureza de goma (ingles)
http://www.wallaceinstruments.co.uk/sites/wallaceinstruments.co.uk/files/styles/thumbnail/public/paper2.pdf