No, Joe, it's 2000 sheets (4 reams) of 8.5"x 11" paper. Converting the 20 lb/2000 sheets to g/m^2:
20*454/(8.5*11*0.0254*0.0254*2000) = 75.26 (or, approximately 75) The numerator is 20 pounds expressed as grams. The denominator is the area of 2000 letter-size sheets in square meters. To perform the calculation, just use the expression on the left of the equals sign as a Google search argument. Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator] > >If I remember correctly, the 20 pounds refers to the mass of 500 >sheets of paper of that particular size, while the metric value >refers to the mass of a square metre of the paper, regardless of the >size or the number of sheets. In other words the pounds gives the >mass of a certain number of sheets of a certain size, while the >metric number is a measure of the mass per unit area of a single >sheet. >-- >Joseph B. Reid >17 Glebe Road West >Toronto M5P 1C8 Telephone 416-486-6071 >
