ISO 9873:2019 pdf free

ISO 9873:2019 pdf free.Dentistry一Intra-oral mirrors
Intra-oral mirrors, including the handle, shall withstand 100 reprocessing cycles, as defined by the manufacturer’s instructions in accordance with ISO 17664, without deformation or showing signs of corrosion. There shall be no visible damage to the reflective coating and there shall be no ingress of water.The manufacturer shall specify if the mirror handle shall be disassembled from the head for the reprocessing cycle.
The manufacturer shall specify the maximum number of reprocessing cycles for both the mirror and the handle if this is less than 100 cycles. In this case this number shall be used for the test, in place of the 100 cycles.
Submit the mouth mirror to 100 reprocessing cycles according to the manufacturer’s instructions in accordance with ISO 17664. The reprocessing cycle shall include the manufacturer’s recommended methods of cleaning, disinfection and sterilization, in accordance with ISO 17664.Inspect all surfaces of the instrument for any signs of corrosion or surface defects and inspect the reflective surface of the mirror for any loss of integrity.
NOTE Discolorations due to water stains are not signs of corrosion.
If the manufacturer specifies a maximum number of reprocessing cycles allowed, this specified number shall be used in place of the 100 cycles.The hole, key 1, which is 10 mm in diameter, has cross-wires positioned as shown and a light source situated immediately behind it. A white card, key 2, marked with squares as shown, is fixed close to the hole, so that the image of the cross-wires will be in the same horizontal plane as the cross-wires.
upright rod and move the handle until the image of the intersection of the rod with the crosspiece is visible. Move the mirror vertically up and down, keeping it in line with the upright rod of the apparatus, and observe whether or not any distortion occurs in the image of the crosspiece and upright rod.Repeat the exercise after placing a sheet of graph paper against the crosspiece of the apparatus. Once again, observe whether or not any distortion occurs in the image of the graph paper.ISO 9873 pdf free download.