This document specifies two methods for determining the heat resistance of patent leather.
Method A makes use of a modified lastometer, while Method B uses the “Zwik” apparatus. Both methods are applicable to patent leathers for all end uses.
PUBLISHED
SSH EN ISO 17232:2017
IN_DEVELOPMENT
prSSH EN ISO 17232:2025
40.20
DIS ballot initiated: 12 weeks
Feb 9, 2026
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