Ball Drop impact resistance and IK Ratings explained
“Ball Drop” refers to the impact resistance of the touch screen. The impact resistance is determined by dropping a steel ball of a specified mass from a specified height onto the front of the product in a horizontal position. Most Ball Drop ratings are specified by IK ratings; occasionally UL ratings are used.
The ratings are as stated below (“protected against” meaning that the glass does not break under the stated conditions):
IK07 - Protected against 2 joules of impact (the equivalent to the impact of a 0.5kg mass dropped from 400mm above the impacted surface)
IK08 - Protected against 5 joules of impact (the equivalent to the impact of a 1.7kg mass dropped from 300mm above the impacted surface)
UL60950 – Protected against 0.5kg mass dropped from 300mm above the impacted surface
No Ball Drop specification or “Ball Drop: -“ means no ball drop certification applies to the product.
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