Table C.1 IntelliTouch Touchmonitor SpecificationS
Mechanical
Positional Accuracy  | Standard deviation of error is less than 0.080 in. (2.03 mm). Equates to less  | 
  | than ±1%.  | 
Touchpoint Density  | More than 100,000 touchpoints/in2 (15,500 touchpoints/cm2).  | 
Touch Activation Force  | Typically less than 3 ounces (85 grams).  | 
Surface Durability  | Surface durability is that of glass, Mohs’ hardness rating of 7.  | 
Expected Life  | No known   | 
Performance  | IntelliTouch technology has been operationally tested to more than 50 million  | 
  | touches in one location without failure, using a stylus similar to a finger.  | 
Sealing  | Unit is sealed to protect against splashed liquids, dirt, and dust. See IntelliTouch  | 
  | Product Manual for details.  | 
Optical
Light Transmission (per ASTM D1003)
Visual Resolution
Gloss (per ASTM D2457 using a 
90%
All measurements made using USAF 1951 Resolution Chart, under 30X magnification, with test unit located approximately 1.5 in (38 mm) from surface of resolution chart.
Clear surface: Excellent, with no noticeable degradation.
Antiglare surface: 6:1 minimum.
Clear surface: N/A
Antiglare surface: Curved: 60 ± 20 gloss units or 75 ± 15 gloss units.
Environmental
Chemical Resistance  | The active area of the touchscreen is resistant to all chemicals that do not affect  | 
  | glass, such as:  | 
  | Acetone  | 
  | Toluene  | 
  | Methyl ethyl ketone  | 
  | Isopropyl alcohol  | 
  | Methyl alcohol  | 
  | Ethyl acetate  | 
  | |
  | Gasoline  | 
  | Kerosene  | 
  | Vinegar  | 
Electrostatic Protection  | Meets Level 4 (15 kV air/8 kV contact discharges).  | 
(per EN 61   | 
  | 
Mechanical  | 
  | 
Construction  | Top: Polyester with outside   | 
  | Inside: Transparent conductive coating.  | 
  | Bottom: Glass substrate with uniform resistive coating. Top and bottom layers  | 
  | separated by   |