NF EN ISO 2746

NF EN ISO 2746

December 2015
Standard Current

Vitreous and porcelain enamels - High voltage test

ISO 2746:2015 describes two test methods of high voltage testing:- Test A is used to detect and locate defects in vitreous and porcelain enamels;- Test B is used to detect and locate defects and weak spots in vitreous and porcelain enamels.The tests are performed using DC or pulsed DC high voltage.The tests are applicable to dry surfaces of enamel coatings. In the case of moist surfaces, care should be taken to ensure that the locating of any defects is correctly performed.Since test voltages depend on the coating thickness, the test method, especially with test A, may not be suitable for test specimens for which the coating thickness varies to a large extent.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2015

Number of pages

14 p.

Reference

NF EN ISO 2746

ICS Codes

25.220.50   Enamels

Classification index

A92-110

Print number

1

International kinship

ISO 2746:2015

European kinship

EN ISO 2746:2015
Sumary
Vitreous and porcelain enamels - High voltage test

ISO 2746:2015 describes two test methods of high voltage testing:

- Test A is used to detect and locate defects in vitreous and porcelain enamels;

- Test B is used to detect and locate defects and weak spots in vitreous and porcelain enamels.

The tests are performed using DC or pulsed DC high voltage.

The tests are applicable to dry surfaces of enamel coatings. In the case of moist surfaces, care should be taken to ensure that the locating of any defects is correctly performed.

Since test voltages depend on the coating thickness, the test method, especially with test A, may not be suitable for test specimens for which the coating thickness varies to a large extent.

Replaced standards (2)
NF EN 14430
January 2005
Standard Cancelled
Vitreous and porcelain enamels - High voltage test

Le présent document décrit deux méthodes d'essai sous haute tension - un essai permettant de détecter et de localiser les défauts dans les émaux vitrifiés ; - un essai permettant de détecter et de localiser les points faibles dans les émaux vitrifiés.

NF ISO 2746
December 1993
Standard Cancelled
Vitreous and porcelain enamels. Enamelled articles for service under highly corrosive conditions. High voltage test.

Dans la série des normes traitant des émaux vitrifiés, le présent document définit un essai sous haute tension réalisé sur des articles émaillés pour usage dans des conditions hautement corrosives.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Appareillage
  • 6 Éprouvettes
  • 7 Tension d'essai
  • 8 Mode opératoire
  • 9 Rapport d'essai
  • Bibliographie
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