// Function to calculate the density of a cubic unit of wood. // waterdensity must in in the unit desired for output. // by David R. Larsen, Copyright June 2, 2015 // Creative Commons http://creativecommons.org/licenses/by-nc/3.0/us/ // // "Specific gravity G is defined as the ratio of the density of a substance // to the density of water pw at a specified reference temperature, typically // 4 C (39 F), where pw is 1.000 g cm-3(1,000 kg m-3 or 62.43 lb ft-3)." (Wood Handbook) // Equation from Wood Handbook Chapter 4, page 10-12, General Technical Report FPL-GTR 190 density = function(sg, mc, wdensity){ let dens; dens = wdensity * sg * (1 + (mc / 100.0)); return dens; }; console.log("imperial =", density(0.4, 12.0, 62.43)); console.log("si =", density(0.4, 12.0, 1000.0));