"Iron and Steel" vol. 10, pp. 83-90 (1989), by: Yoshio Nuri and Kazusige Umezawa Development of Separation and Evaluation Technique of Non-Metallic Inclusions in Steel by Electron Beam Melting. |
Journal Issued May 19, 1987 by Japan Society for the Promotion of Science pp. 5-1 to 5-14. |
ASTM-E45 of the American National Standards Institute: "Standard Recommended Practice for Determining the Inclusion Content of Steel" (Aug. 1976). |
J18-G0555, "Microscopic Testing Method for the Non-Metallic Inclusions in Steel", (1977). |