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The article is marked with "unreferenced" -box (This article does not cite any references or sources.
Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2009) ).
I work as lecturer in automotive electronics in Helsinki Polytechnic (Metropolia). At my first look, the table looks to be correct. To be sure, I compared the table with a Finnish textbook (Auton sähkölaitteet by Simo Nieminen) and then I yet checked the original standard in German (DIN 72552, Blatt 1 - Blatt 4). If I did not make any careless mistakes, the table is correct, and therefore I'm removing the box.
One could add a good English language source and expand the descriptions a little. I tried to find an English translation of the standard in our library, but I couldn't find one. The standards are copyrighted, so it's hard to find one from internet, too. Hope this helps. --Vesa Linja-aho (talk) 14:08, 24 September 2010 (UTC)[reply]