ISO 6875 pdf download Dentistry — Patient chair 6 Sampling Where possible, all type tests shall be made on one representative sample of the patient chair. 7 Testing 7.1visual inspection Visually inspect the test piece to determine compliance with the requirements.7.2Mechanical tests 7.2.1Moving parts Measure the distances between the moving parts and counterparts and visually inspect the test piece todetermine compliance with the...