I.S. EN 21797:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
DENTISTRY: ROTARY INSTRUMENTS: SHANKS
12-12-1995
12-01-2013
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Lays down specifications for shanks of dental rotary instruments and specifies methods of measurement for the verification of the dimensions.
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