Knoop test

noun

A microhardness test in which a pyramidal diamond point is pressed into the polished surface of the test material with a known load, for a specified dwell time, and the resulting indentation is measured using a microscope.

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Meanings

nounKnoop test (plural Knoop tests)

plural Knoop tests

  1. A microhardness test in which a pyramidal diamond point is pressed into the polished surface of the test material with a known load, for a specified dwell time, and the resulting indentation is measured using a microscope.

Origin

Developed by Frederick Knoop and colleagues at the National Bureau of Standards of the United States in 1939.

Full word history & related roots →
Cite this entry
APA

Knoop test. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Knoop%20test

MLA

“Knoop test.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Knoop%20test. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Knoop test,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Knoop%20test.

Source: Knoop test on Wiktionary, CC BY-SA 4.0.