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MIL-C-675C. Withstands 10,500 grams of force per Balance Beam
Scrape Adhesion Mar Tester. MicroScratch tester with 10 micron
radius tungsten carbide indenter takes a force of 1.8 Newtons.
NEMA Rating: NEMA sealable.
Gasketing: Complete water-resistant seal obtainable with polyethyl-
ene gasket.
Cleaning: Water, isopropyl alcohol, and similar non-abrasive cleaners.
Reliability
Endurance Test: A capacitive sensor with Industrial etch has been
tested in a laboratory environment to withstand over 225 million
mechancial touches without noticable degradation to the surface.
Surface Obstructions: Touch screen's operation unaffected by surface
obstructions such as dirt, dust, grease, smoke, peanut butter, etc.
Chemical Resistance: Capacitive sensor is highly resistant to corro-
sives, in accordance with ASTM-D-1308-87 (1993) and ASTMD-F-
1598-95.
Liquid Resistance: Liquids on screen do not impede touchscreen per-
formance.
Liquid Repellence: Contact angle of 94° and greater measured using
Sessile Drop Contact Angle Method. This renders the screen
extremely water repellent.
Operating Temperature Range: -15°C to 70°C for touch screen.
Storage Temperature: Always store the touch screen sensor in its
original shipping container between -50° C and 85° C (MIL-STD-
810E). Never store the touch sensors in an environment where con-
densation may form.
15
Appendix A
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