Corrosive effect on copper

Area	Petroleum products
title	Corrosion effect on copper - copper strip test
Latest edition	1999-04
ISO

When checking the corrosion effect on copper in accordance with EN ISO 2160 , it is checked to what extent lubricating oils and greases corrode copper . The acids and the sulfur content in the lubricant cause corrosion , which is prevented by adding a metal deactivator.

In Germany the standard is published as the DIN standard DIN EN ISO 2160.

For the test, a ground, polished and degreased sheet copper strip is coated with the lubricant and then immersed in the sample container for a defined time at a defined temperature of usually 100 ° C. The degree of corrosion is then assessed from the tarnish color on the test strip.

In the United States, the ASTM D 130 method is used for testing.

Degree of corrosion (DIN)	meaning	Tarnishing colors
1	slight tarnishing	bright orange, almost exactly like a freshly sanded strip dark orange
2	moderate tarnishing	wine red lavender multicolored with lavender blue and / or silver coating on wine red silvery brass-colored or golden
3	strong temper colors	magenta-colored coating on a brass-colored strip multicolored with red and green (peacock pattern), but not gray
4th	corrosion	transparent black, dark gray or brown with barely visible peacock green graphite or matt black shiny or pitch black

literature

Hans-Jürgen Blanke, Wilfried J. Bartz, Uwe Jens Möller: Expert Practice Lexicon Tribology Plus. 2010 Terms for study and work, 2nd edition, Expert Verlag, Renningen 2000, ISBN 3-8169-0691-5 .

Individual evidence

↑ Corrosion effect on copper - copper strip test (ISO 2160) ( Memento of the original from March 17, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2

Web links

Corrosion effect on copper Copper strip test (ISO 2160) (accessed September 10, 2018)
Corrosion of construction metals (accessed September 10, 2018)
Technical information on the corrosion of copper pipes when used in hot water and circulation pipes (accessed on September 10, 2018)
Corrosion and Corrosion Protection (accessed September 10, 2018)

[1] Corrosion effect on copper - copper strip test (ISO 2160) ( Memento of the original from March 17, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2