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Overview ISO 4491-1:2023 - Metallic powders - Determination of oxygen content by reduction methods - Part 1: General guidelines provides high‑level guidance for measuring oxygen in metallic powders u…
Overview ISO 4491-3:2025 - "Metallic powders - Determination of oxygen content by reduction methods - Part 3: Hydrogen-reducible oxygen" - specifies a laboratory method to determine the hydrogen-redu…
Overview ISO 4491-4:2019 is an internationally recognized standard developed by the International Organization for Standardization (ISO) that specifies a precise method for determining the total oxyg…
Overview ISO 4491-3:1997 - "Metallic powders - Determination of oxygen content by reduction methods - Part 3: Hydrogen-reducible oxygen" specifies a laboratory method to determine hydrogen-reducible…
Overview ISO 4491-2:2023 - Metallic powders - Determination of oxygen content by reduction methods - Part 2: Loss of mass on hydrogen reduction (hydrogen loss) defines a standardized laboratory test…
1 Scope This part of ISO 4491 specifies a method for the determination of the total oxygen content of metallic powders by reduction-extraction at high temperature. By agreement, this method is also a…
1 Scope This part of ISO 4491 specifies a method for the determination of the hydrogen-reducible oxygen content of metallic powders containing 0,05 % ( m/m ) to 3 % ( m/m ) oxygen. The method is appl…