ISO 4746:1977
ISO 4746:1977



Provides a means of assessing the usability in electronic devices, for applications involving glass-to-metal seals, or other uses relying on the formation and presence of an adherent film of copper oxide. The procedure includes preparation and heating in air of a test piece, followed by rapid cooling in water and visual examination for loss of the oxide film or blistering.

General information 

  •  :  Published
     : 1977-08
  •  : 1
     : 1
  •  : ISO/TC 26 Copper and copper alloys
  •  :
    77.040.99 Other methods of testing of metals

Buy this standard

Format Language
std 1 40 PDF
std 2 40 Paper
  • CHF40

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.