NEN EN ISO 2157:1995被替代
Dentistry - Dental Rotary Instruments - Nominal Diameters And Designation Code Number
出版：Nederlands Normalisatie Instituut
专家解读视频
Specifies the nominal diameters of the working parts of dental rotary instruments. Does not cover the diameters of root canal instruments.
Supersedes NEN ISO 2157. (09/2002)
ONORM EN ISO 2157:1996 - Identical
DIN EN ISO 2157 (1995-04) - Identical
BS EN ISO 2157:1995 - Identical
SN EN ISO 2157:1995 - Identical
UNE EN ISO 2157:1995 - Identical
SS EN ISO 2157 Ed. 1 (1995) - Identical
NS EN ISO 2157 Ed. 2 (1995) - Identical
ISO 2157:1992 - Identical
UNI EN ISO 2157:1997 - Identical
NBN EN ISO 2157:1995 - Identical
I.S. EN ISO 2157:1995 - Identical
BS EN ISO 2157:2016 - Identical
EN ISO 2157:2016 - Identical
NF EN ISO 2157:1995 - Identical
