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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Publications of NA 062-01-41 AA

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ISO 4545-2	2017-12	Standards	Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines More	Order from DIN Media
ISO 4545-3	2017-12	Standards	Metallic materials - Knoop hardness test - Part 3: Calibration of reference blocks More	Order from DIN Media
ISO 4545-4	2017-12	Standards	Metallic materials - Knoop hardness test - Part 4: Table of hardness values More	Order from DIN Media
ISO 6506-1	2014-10	Standards	Metallic materials - Brinell hardness test - Part 1: Test method More	Order from DIN Media
ISO 6506-2	2017-10	Standards	Metallic materials - Brinell hardness test - Part 2: Verification and calibration of testing machines More	Order from DIN Media
ISO 6506-3	2014-10	Standards	Metallic materials - Brinell hardness test - Part 3: Calibration of reference blocks More	Order from DIN Media
ISO 6506-4	2014-10	Standards	Metallic materials - Brinell hardness test - Part 4: Table of hardness values More	Order from DIN Media
ISO 6507-1	2023-10	Standards	Metallic materials - Vickers hardness test - Part 1: Test method More	Order from DIN Media
ISO 6507-2	2018-01	Standards	Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines More	Order from DIN Media
ISO 6507-3	2018-01	Standards	Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks More	Order from DIN Media

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