The government loves those mixed units. Automobile emission limits are grams per mile.
--- On Mon, 9/14/09, James R. Frysinger <[email protected]> wrote: From: James R. Frysinger <[email protected]> Subject: [USMA:45811] Semi-metric wood hardness measurement To: "U.S. Metric Association" <[email protected]> Date: Monday, September 14, 2009, 11:14 AM What was not specified there was the unit of force that is used to come up with the numerical values. This is of course not the first time I've seen folks spout numbers without units! Further research led to a USDA research note: Janka Hardness Using Nonstandard Specimens http://www.fpl.fs.fed.us/documnts/fplrn/fpl_rn303.pdf This indicates that the units cited in the first reference are likely in pounds force (lbf), equivalent to 4.448 N to 4 places. The research note tabulates results in "lbf/cm2", which really yanks my tiny brain around! Jim -- James R. Frysinger 632 Stony Point Mountain Road Doyle, TN 38559-3030 (C) 931.212.0267 (H) 931.657.3107 (F) 931.657.3108
