1. 1) M. Sasabe: Bull. Iron Steel Inst. Jpn., 15 (2010), 562.
2. 2) JIS G 1215-1, Iron and Steel-Determination of Sulfur Content- Part 1: Gravimetric Method after Separation of Iron, JIS, Tokyo, (2010).
3. 3) JIS G 1215-2, Iron and Steel-Determination of Sulfur Content-Part 2: Gravimetric Method after Chromatographic Separation, JIS, Tokyo, (2010).
4. 4) JIS G 1215-3, Iron and Steel-Determination of Sulfur Content-Part 3: Methylene Blue Spectrophotometric Method after Separation of Hydrosulfide, JIS, Tokyo, (2010).
5. 5) JIS G 1215-4, Iron and Steel-Determination of Sulfur Content-Part 4: Infrared Absorption Method after Combustion in an Induction Furnace, JIS, Tokyo, (2010).