Metallic materials. Knoop hardness test - Test method Ingestion-build-81500 people spend a lot of

people spend a lot of time in their vehicles

This document deals with high-power optical amplifiers

1 µm to equal to or larger than 5 µm (given in ISO 14644-1)

the optical fuse remains transparent

BS EN ISO 17662:2016 includes some technical changes with respect to BS EN ISO 17662:2005

Metallic materials. Knoop hardness test - Test method Ingestion-build-81500 people spend a lot of1 Scope This document specifies the Knoop hardness test method for metallic materials for test forces from 0,009 807 N to 19,613 N. The Knoop hardness test is specified in this document for lengths of indentation diagonals 0,020 mm. Using this method to determine Knoop hardness from smaller indentations is outside the scope of this document as results would suffer from large uncertainties due to the limitations of optical measurement and imperfections