A charged device model (CDM) test is used to define the ESD a device can withstand when the device itself has an electrostatic charge and discharges due to metal contact. This discharge type is the most common type of ESD in electronic devices and causes most of the ESD damages in their manufacturing.
There are 2,000 pounds in one ton. Tons and pounds are both units of measurement that describe mass.
In the United States, when people say a ton, they're most often thinking of the short ton, or 2000 pounds. In the UK, a ton is equal to 2,240 pounds. The international unit for mass is the kilogram; the toone (t) is a multiple of kg but is only an accepted unit in SI - the correct name is megagram.