Touch
screen
DLoG ITC 7
User’s Manual
61
11.6.
Resistance
Mechanical resistance
Pencil hardness test ASTM D 3363-92a:
The resistive DLoG touch screens have a hardness
≥
4 H.
Chemical resistance
The touch screen surface finish is unaffected by exposure to the following chemicals for
a period of one hour at 22 °C, 45% relative humidity. ASTM-F-1598-95.
Food material:
Tea, Coffee, Ketchup, Mustard, Vinegar, Soy Sauce, Beer, Red Wine, Cola,
Cooking Oil
Household and Industrial Chemicals:
Detergent, all-purpose cleaner, dishwashing detergent, glass cleaner, hydrogen
peroxide (3%), Lysol, ethanol, isopropanol, acetone, methylethylketone, toluene,
concentrated hydrochloric acid, petroleum, benzene, gasoline, motor oil, diesel, gear
oil, brake fluid, antifreeze, hydraulic oil.