RESISTANCE TO CHEMICAL AGENTS
This test checks the body and lens resistance to these substances: radiator fluid, 4T 10W 30 engine oil, petrol, E 10 petrol, DOT 4 brake oil and bodywork wax. In the photo, the laboratory technician Samuele Bertoni is applying the various substances with a soft cloth over the entire external surface. The agents are left to act for 24 hours, except the brake oil, which is only applied for one hour. At the end, any deposits are removed with water and dried with a soft cloth. The sample must not show any cracks, discolorations, swellings, bubbles, halos or other alterations.