Under publication
ISO 28721-2
Vitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 2: Designation and specification of resistance to chemical attack and thermal shock
Reference number
ISO 28721-2
Edition 3
2025-02
© ISO 2025
Under publication
Under publication (Edition 3, 2025)
Final production steps (up to seven weeks).
Will replace ISO 28721-2:2015

Abstract

This document specifies requirements for the resistance of chemical enamels to chemical attack and thermal shock, as well as their designation, for ordering purposes.

It is applicable to enamels used in glass-lined apparatus, piping and other components, primarily used in process equipment in chemical plants, which are applied on to low-alloy carbon steels substrates.

NOTE            The main criteria for assessing enamel quality are its resistance to chemical attack and thermal shock, and the structure of the cover coat enamel.

General information

  • Status
     : Under development
    Publication date
     : 2025-02
    Stage
    : International Standard under publication [60.00]
  • Edition
     : 3
  • Technical Committee :
    ISO/TC 107
    ICS :
    25.220.50 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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