Vickers hardheidstoets: Verskil tussen weergawes

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k Robot: standardiseer verwysingsjablone en voeg argiefskakels in.
k Robot: standardiseer verwysingsjablone en voeg argiefskakels in.
 
Lyn 9:
 
*<math>\alpha</math> = tophoek piramide (°)
*F = toetskrag (gewoonlik in [kgf])<ref>{{cite web |url=http://www.gordonengland.co.uk/hardness/vickers.htm |title=Gordon Engeland |language=en |archive-url=https://web.archive.org/web/20200510082358/https://www.gordonengland.co.uk/hardness/vickers.htm |archive-date=10 Mei 2020 |url-status=live |df=dmy-all}}</ref>
*d = rekenkundig gemiddelde diagonale [mm]