6807 / 2023

طرق اختبار الاحجار الطبيعية – اختبار الفحص الصخرى (البتروجرافى ( EN 12407/2019)(متبناة)

This document specifies methods for making technical petrographic descriptions of natural stone, except for roofing slates. For this product, the method for the petrographic examination is defined in EN 12326-2. Although chemical and physical methods of