AS ISO ASTM 52907:2021 Additive manufacturing – Feedstock materials一Methods to characterize metal powders

AS ISO ASTM 52907:2021 Additive manufacturing – Feedstock materials一Methods to characterize metal powders. This document provides technical specifications for metallic powders intended to be used in additive manufacturing and covers the following aspects: — documentation and traceability; — sampling; — particle size distribution; — chemical composition; — characteristic densities; — morphology; — flowability; — contamination; — packaging and storage. This document does not deal with safety aspects. In addition, this document gives specific requirements for used metallic powders in additive manufacturing. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2591-1, Test sieving — Part 1: Methods using test sieves of woven wire cloth and perforated metal plate ISO 3252, Powder metallurgy — Vocabulary ISO 3923-1, Metallic powders — Determination of apparent density — Part 1: Funnel method ISO 3923-2, Metallic powders — Determination of apparent density — Part 2: Scott volumeter method ISO 3953, Metallic powders — Determination of tap density ISO 3954, Powders for powder metallurgical purposes — Sampling ISO 4497, Metallic powders — Determination or particle size by dry sieving ISO 13320, Particle size analysis — Laser diffraction methods ISO 13322-1, Particle size analysis — Image analysis methods — Part 1: Static image analysis methods ISO 13 322-2, Particle size analysis — Image analysis methods — Part 2: Dynamic image analysis methods ISO 22412, Particle size analysis — Dynamic light scattering (DLS) ISO/ASTM 52900, Additive manufacturing — General principles — Fundamentals and vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in Iso 3252, ISO/ASTM 52900, ASTM B243 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www .org/obp — IEC Electropedia: available at http://www.electropedia.org/ 3.1 EDX X-ray spectrometry in which the energy of individual photons is measured by a parallel detector and used to build up a histogram representing the distribution of X-rays with energy [SOURCE: ISO/TS 80004-13:2017, 3.3.2.4, modified — “EDX” has been kept as the only term and “are” has been changed to “is”] 4 Technical specifications 4.1 General The supplier and customer shall choose the test methods appropriate...