DB3701/T 0005.2-2019
DB31/T 457.2-2009
DIN EN ISO 28721-2-DRAFT
Draft Document - Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 2: Designation and specification of resistance to chemical attack and thermal shock (ISO/FDIS 28721-2:2015); German and English version FprEN ISO 28721-2:2015