Force gauge
Test units of force measurements are most commonly newtons or pounds. The peak force is the most common result in force testing applications. It is used to determine if a part is good or not. Some examples of force measurement: door latch, quality of spring, wire testing, strength ... but more complicated tests can be performed like peeling, friction, texture.
International Practical Shooting Confederation
The official unit used for the power factor is the imperial unit "kilo grain feet per second" (kgr·ft/s). "Grain feet per second" (gr·ft/s) can be obtained by measuring the "mass" in grain (gr) (equal to pound), and "velocity" in feet per second (ft/s), but since their product yields a very large number it is common to multiply by a factor of , obtaining the power factor in ""kilo" grain feet per second" instead.