YY 0302.1-2010Dental rotary instruments—Burs - Part 1: Steel and carbide burs (English PDF)

Foreword

YY 0302 divided into two parts.

--- Part 1. Steel and carbide burs;

--- Part 2. polished steel and carbide burs. This is Part 1 YY 0302 of.

The partial modification of the use of ISO 3823-1:1997 "bur dental rotary instruments - Part 1. Steel and carbide burs" (English Version). The main modifications are as follows.

--- For international standards cited in this section, if it has converted to our standards, international standards in this section will replace the corresponding reference number Number of national or industry standards, and in Chapter 2 marked on relationships.

--- Other international standards if references have been updated version of this section to replace the old version with a new version, the old version of the terms of reference in the text No. correspondingly modified to the new version of the corresponding article number.

This Part replaces YY 0302-1998 "high-speed dental bur." This part of the jurisdiction of the National Dental Materials and Devices Equipment Standardization Technical Committee dental equipment and instruments at the Technical Committee.

This section drafted by the State Food and Drug Administration Guangzhou Medical Device Quality Supervision and Inspection Center.

Introduction

This section is a study on dental rotary instruments standards.

ISO 3823-1 second edition includes the modifications to the carbide bur requirements. About steel bur requirements remain unchanged.

This Part of the steel and tungsten carbide bur bur in size and other requirements are considered to ensure that the bur Interchangeability and safety in the dental clinic is very important.

Tables 1 to 22 are listed in the working portion of the nominal diameter consistent with the diameter specified in ISO 2157. The first column gives the diameter (Preferred diameter) should be used in preference.

1 Scope

This section specifies the YY 0302 ten most common shape steel and carbide bur size and requirements, including for Quality control requirements of these devices.

2 Normative references

The following documents contain provisions which, through reference YY 0302 present, constitute provisions of this section. For dated references, All subsequent amendments (not including errata content) or revisions do not apply to this section, however, encourage the agreement on this section Whether the parties can study the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)

ISO 1797-1:1992 Dental rotary instruments - Part 1 lever. metal rod

ISO 2157:1992 Dental rotary instruments nominal diameter and design code number Section 2004 Dental rotary instruments - Number coding system for the first 1.. ISO 6360-1 general performance

ISO 6360-2:2004 Dental rotary instruments - Number coding system - Part 2. Shape and special performance

ISO 8325:2004 Dental rotary instruments - Test Method Category 3 Depending on the material of the working part, steel and carbide burs divided into the following two types.

--- Type 1. steel bur;

--- Type 2. Carbide bur.

4 Dimension symbol

This section uses the following symbols. d1 working part diameter, head diameter; d2 neck diameter; l1 working part length, head length; The total length l2.

5 Requirements