標準號：ANSI INCITS 179-1990
中文標準名稱：信息系統.接觸式起止金屬薄膜存儲磁盤.9.5-mm(3.740-in)外徑和25-mm(0.984-in)內徑及1.27-mm(0.050-in)厚度的每磁道83333磁通轉變次數 代替ANSI X3.179-1990
英文標準名稱：Information Systems - Contact Start-Stop Metallic Thin-Film Storage Disk - 83 333 Flux Transitions per Track 9.5-mm (3.740-in) Outer Diameter and 25-mm (0.984-in) Inner Diameter and 1.27-mm (0.050-in) Thickness Replaces ANSI X3.179-1990
標準類型：L64
發布日期：1990/1/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L64
國際標準分類號：35.220.21
適用范圍：Provides the mechanical, physical and magnetic properties of a low-friction disk with a diameter of 95 mm (3.740 inches) and with a typical recording density of 31.5 tracks per millimeter (tpmm) (800 trakcs per inch (tpi)) with 567 flux transitions per millimeter (ftpmm) (14 400 flux transitions per inch (ftpi)) at a radius of 23 mm (0.900 inch).