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.
USCS and Imperial also differed on several supplemental units; e.g., US hundredweight = 100 pounds, UK hundredweight = 112 pounds = 8 stone. A ton in each country was 20 hundredweight, but because of the difference in hundredweight, the US used a âshort tonâ of 2000 lbs, and the UK a âlong tonâ of 2240 lbs.