The Rockwell Hardness test is a hardness measurement based on the net increase in depth of impression as a load is applied. Hardness numbers have no units and are commonly given in the R, L, M, E and K scales. The higher the number in each of the scales means the harder the material.
Apac. Apac is a town in Apac District, Northern Uganda. It is the 'chief town' of the district and the district headquarters are located there. The district is named after the town. see more on Definitions.net Â».
Our group, Trails for Recreation and Community (TRAC) represents multiple types of trail users in both Plumas and Sierra County including the Tahoe and Plumas National Forest. We represent all trail enthusiasts from OHV to mountain biker hiker to equestrian.