EN 22157:1989
Dentistry; dental rotary instruments; nominal sizes and designation (ISO 2157:1984)

Standard No.
EN 22157:1989
Release Date
1989
Published By
European Committee for Standardization (CEN)
Status
Replace By
EN 22157:1990
Latest
EN 22157:1990

EN 22157:1989 history

  • 1990 EN 22157:1990 Dentistry Dental Rotary Instruments Nominal Sizes and Designation
  • 1989 EN 22157:1989 Dentistry; dental rotary instruments; nominal sizes and designation (ISO 2157:1984)



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