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.
Typically, this is the unit that you use to measure your own weight. Pounds are used to measure lots of things from people to food to animals. But if something is very heavy we use yet another label: The Ton. 2,000 pounds is also one ton. 1 ton = 2,000 pounds. That is really heavy! Trucks, ships and heavy equipment are measured using tons instead of pounds. An elephant has a mass of about 7 tons. And this car is about 2 tons.