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.
The short ton is a unit of weight equal to 2,000 pounds (907.18474 kg). The term is most commonly used in the United States where it is known simply as the ton.