standard air(Air with a weight of 0.075 pounds per cubic foot with an equivalent density of dry air at a temperature of 86 degrees Fahrenheit and standard barometric pressure of 29.92 inches of mercury. Found on – st.air electromn.comAlexander Demidov)
subadjacent support(1 AGRICULTURAL extension.umd.edu›sites/extension.umd.edu/files/_… The tenant will have some rights to subadjacent support of the surface, the right to have the surface supported in its natural state by the adjoining land and underground structures. If the mining operation will affect the surface of the rented property and interfere unreasonably with the farming operation, a tenant may be able to receive a reduction in the rent owed or maybe able to negotiate a new rental rate. Moonranger)