ISO 9873 pdf download

ISO 9873 pdf download.Dental hand instruments – Reusable mirrors and handles 1 Scope This International Standard specifies requirements and test methods for reusable mouth mirrors with a coated glass reflecting surface and metal casing and metallic handles suitable for dental use in the oral cavity. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 68-1 :-I), IS0 general-purpose screw threads – Basic profile – Part I: Metric screw threads. IS0 724:1993, IS0 general-purpose metric screw threads – Basic dimensions. IS0 965-1 :- 2), IS0 general-purpose metric screw threads – Tolerances – Part I: Principles and basic data. IS0 1 942-3: 1 989, Dental vocabulary – Part 3: Dental instruments. IS0 3696:1987, Water for analytical laboratory use – Specification and test methods. IS0 71 53-1 :1991, Surgical instruments – Metallic materials – Part 1: Stainless steel. IS0 13402:1995, Surgical and dental hand instruments – Determination of resistance against autoclaving, corrosion and thermal exposure. 3 Definitions For the purposes of this International Standard, the definitions in IS0 1 942-3 and the following definitions apply. 3.1 mirror intra-oral inspection or inspection and retraction instrument generally comprising the mirror head and the mirror handle 3.2 mirror head assembly comprising a glass reflective surface, casing, packing (if present) and stem 3.3 stem that part of the mirror head connecting the glass and casing to the handle 3.4 reflecting surface layer applied to the mirror glass for the purpose of reflecting light 3.5 reflecting back surface reflecting layer coated onto the back surface of the mirror glass so that the image can be observed through the glass 3.6 reflecting front surface reflecting layer coated onto the front surface of the mirror glass so that the image can be observed with no intervening glass layer 3.7 plane mirror dental mirror whose reflective surface is flat 3.8 magnifying mirror dental mirror whose reflective surface is concave to produce an enlarged image of the object observed 3.9 viewing surface surface of the mirror glass, excluding the bevel, not enclosed by the metal casing...