Why should rubber goods not be subjected to ozone?

Rubber goods, such as insulating gloves and matting, should not be subjected to ozone because ozone can cause the rubber material to deteriorate. Ozone is a highly reactive gas that interacts with rubber compounds, leading to a process called ozone cracking. This occurs because the molecules in rubber break down when exposed to ozone, resulting in a loss of elasticity and strength. Over time, this deterioration can compromise the integrity of the rubber goods, making them less effective as insulators and potentially leading to failures in electrical safety when used.

The other options do not accurately reflect the impact of ozone on rubber materials. For example, the notion that ozone creates a conductive layer is misleading, as exposure to ozone actually damages the rubber's insulating properties. Additionally, increasing strength is opposite to the actual effect, as ozone weakens rubber. The idea that it requires earlier disposal does not encompass the core issue of deterioration that directly affects performance and safety. Thus, the emphasis remains on how ozone negatively impacts the material properties of rubber goods.