Unit notation
Thread Content
What does wc m.m mean when it is used to represent pressure? Is it mH2O? But it seems that this unit is equivalent to kg/cm2 in value. Also, Grav. is used to represent pressure; it should refer to standard pressure, right? What word is this abbreviation for? Thank you! ! This post was last edited by ship200 on 2007-12-17 18:40]
wc = water column, the column of water. It doesn’t seem right to use m.m after it; it should be m wc or wc m. Please check again, OP. grav = gravity, the force of gravity; it generally refers to the acceleration due to gravity, denoted as g. I’ve never seen grav used to represent pressure; it’s likely referring to standard atmospheric pressure.