This part of EN ISO 22088 specifies a ball or pin impression method for the determination of the environmental stress cracking (ESC) behaviour of plastics by means of a constant-strain test.
DS/EN ISO 22088-4:2006 history
2006DS/EN ISO 22088-4:2006 Plastics - Determination of resistance to environmental stress cracking (ESC) - Part 4: Ball or pin impression method