International Organization for Standardization (ISO)
Latest
ISO 3351:1975
Scope
The method described determines the resistance of the surface layer of a test piece to impact indentation by a steel ball being dropped from a height of 500 1 mm. With a pressing mechanism the test piece is held against a massive base-plate.
ISO 3351:1975 history
1975ISO 3351:1975 Wood; Determination of resistance to impact indentation