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BS EN ISO 19715:2017 pdf free

BS EN ISO 19715:2017 pdf free.Dentistry一Filling instrument with contra angle
This document specifies requirements and test methods for a flling instrument with contra angle,which is used for the restoration of teeth via the application of polymer-based restorative materials and cements. It also specifies requirements for the design, dimensions and marking.
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1942 , Dentistry一Vocabulary
ISO 6507-1 , Metallic materials一Vickers hardness test一Part 1: Test method
ISO 6508-1 , Metallic materials一Rockwell hardness test一Part 1: Test method
ISO 17664 , Sterilization of medical devices一Information to be provided by the manufacturer for the processing of resterilizable medical devices
For the purposes of this document, the terms and definitions given in ISO 1942 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
一IEC Electropedia: available at http://www.electropedia.org/
一ISO Online browsing platform: available at http://www.iso.org/obp
The material of both the handle and the working tip is at the manufacturer’s discretion provided that the requirements of this document are met. If stainless steel is the material of choice, examples of suitable steel types can be found in ISO 7153-1.
The stainless steel of the filling instrument shall have a hardness of 42 HRC to 60 HRC.Test in accordance with 6.2.
The working ends of the flling instrument shall be polished with a surface roughness, R a, not exceeding 0,4 μm, except where otherwise designed. The surface can be gloss or matte, at the manufacturer’s discretion. All surfaces of the filling instrument shall be free of any surface defects and residues.
Coatings may be added to the working tip of metal flling instruments to increase lubricity and provide contrast in the oral cavity. Test in accordance with 6.3.BS EN ISO 19715 pdf download.

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