John Ward wrote: "... future references made with the new definition in place, e.g., existing references to avoirdupois pounds will still be avoirdupois, not 5 dg."
No dispute there. Such references would certainly not be to 5 decigrams! Possibly you meant 5 hg (hectograms). However, as the prefix h is hardly ever used, it's probably better to simply say 500 g. Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator]
