Does iPad pass the UL certification?

I don't know what certification from the UL would apply to a low-voltage device like the iPad. Most UL certifications for electrical devices apply to products that use potentially dangerous levels of current as in the case of the AC adapter. You can see a safety and certification statement on the iPad, though, here:

http://manuals.info.apple.com/en_US/ipad_wificellular_important_product_info.pdf

Regards.

"UL" is a testing organization, not a single standard. So it depends on what "UL" you're referring to. The AC adapter is Ul certified, if that's what you're referring to. Otherwise, please clarify what specific standard or standards you're asking about.

Regards.