STN - Slovak standards

Metallic materials - Instrumented indentation test for hardness and materials parameters - Part 4: Test method for metallic and non-metallic coatings (ISO 14577-4:2007)

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Metallic materials - Knoop hardness test - Part 1: Test method (ISO 4545-1:2023)

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Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines (ISO 4545-2:2017)

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Metallic materials - Knoop hardness test - Part 3: Calibration of reference blocks (ISO 4545-3:2017)

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Metallic materials - Knoop hardness test - Part 4: Table of hardness values (ISO 4545-4:2017)

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Metallic materials. Knoop hardness test. Part 1: Test method (ISO 4545-1:2005)

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Metallic materials - Knoop hardness test - Part 1: Test method (ISO 4545-1:2017)

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Metallic materials. Knoop hardness test. Part 2: Verification and calibration of testing machines (ISO 4545-2:2005)

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Metallic materials. Hardness test. Part 3: Calibration of standardized blocks to be used for Rockwell hardness testing machines (scales A, B, C, D, E, F, G, H, K, N, T)

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Metallic materials. Knoop hardness test. Part 3: Calibration of reference blocks (ISO 4545-3:2005)

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