NF EN ISO 28721-5

NF EN ISO 28721-5

April 2016
Standard Current

Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 5 : presentation and characterisation of defects

ISO 28721-5:2016 establishes a system for the cataloguing of defects in enamellings for chemical service and vessels. In addition, it describes some types of areas in which defects have been treated and which can easily be confounded with enamelling defects. It serves for a consistent language use concerning the designation and characterization of enamelling defects. ISO 28721-5:2016 is limited to detectable defects and does not purport to fully take into consideration all occurring types of defects. It does not evaluate enamelling defects; the classification carried out is based on experience and corresponds, as far as possible, to ISO 28721-1. NOTE Regarding the acceptance of glass lined equipment for use in process engineering, ISO 28721-1 applies.

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Main informations

Collections

National standards and national normative documents

Publication date

April 2016

Number of pages

24 p.

Reference

NF EN ISO 28721-5

ICS Codes

25.220.50   Enamels

Classification index

A91-315-5

Print number

1

International kinship

European kinship

EN ISO 28721-5:2016
Sumary
Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 5 : presentation and characterisation of defects

ISO 28721-5:2016 establishes a system for the cataloguing of defects in enamellings for chemical service and vessels. In addition, it describes some types of areas in which defects have been treated and which can easily be confounded with enamelling defects. It serves for a consistent language use concerning the designation and characterization of enamelling defects.

ISO 28721-5:2016 is limited to detectable defects and does not purport to fully take into consideration all occurring types of defects. It does not evaluate enamelling defects; the classification carried out is based on experience and corresponds, as far as possible, to ISO 28721-1.

NOTE Regarding the acceptance of glass lined equipment for use in process engineering, ISO 28721-1 applies.

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Défauts d'émaillage
  • 5 Zones réparées
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