Англо-русский словарь промышленной и научной лексики. 2014.
Knoop hardness — /nup ˈhadnəs/ (say noohp hahdnuhs) noun microhardness of metal measured by resistance to indentation by a pyramidal diamond indentor. {named after Frederick Knoop, 1878–1943, US instrument maker who devised this means of measuring metal hardness} …
Shore durometer — Two inline skates wheels with different durometer 85A and 83A. Durometer is one of several measures of the hardness of a material. Hardness may be defined as a material s resistance to permanent indentation. The durometer scale was defined by… … Wikipedia
Barcol hardness test — The Barcol hardness test characterizes the indentation hardness of materials through the depth of penetration of an indentor, loaded on a material sample and compared to the penetration in a reference material. The method is most often used for… … Wikipedia
