[31]ISO 4490:2014,Metallic powders-Determination of flow rate by means of a calibrated funnel (Hall flowmeter) [S].

[32]ISO 22674:2016,Dentistry - Metallic materials for fixed and removable restorations and appliances[S].

[33]ASTM E354-14,Standard Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys[S].

[34]ASTM F1877-16,Standard Practice for Characterization of Particles [S].