I.S. EN ISO 2157:1995被替代
Dental Rotary Instruments - Nominal Diameters And Designation Code Number
出版：National Standards Authority of Ireland
專家解讀視頻
Defines the nominal diameters of the working parts of dental rotary instruments, for examples burs, laboratory burs, grinding instruments, diamond instruments, mandrels, etc. and the corresponding designation.
Supersedes I.S. EN 22157.
(05/2005)
UNE EN ISO 2157:1995 - Identical
ISO 2157:1992 - Identical
SS EN ISO 2157 Ed. 1 (1995) - Identical
ONORM EN ISO 2157:1996 - Identical
DIN EN ISO 2157 (1995-04) - Identical
BS EN ISO 2157:1995 - Identical
NEN EN ISO 2157:1995 - Identical
SN EN ISO 2157:1995 - Identical
NBN EN ISO 2157:1995 - Identical
BS EN ISO 2157:2016 - Identical
UNI EN ISO 2157:1997 - Identical
NF EN ISO 2157:1995 - Identical
NS EN ISO 2157 Ed. 2 (1995) - Identical
EN ISO 2157:2016 - Identical
