DIN EN ISO 28721-2 : 2016 Title: Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 2: Designation and specification of resistance to chemical attack and thermal shock (ISO 28721-2:2015) German version EN ISO 28721-2:2015 Year: 2016 Publisher: DIN Media GmbH Availability: Within 1-2 working days