A0 = 1 square meter (but it's not a square). If paper is 80g/sq m (sorry for no superscript, it's late), then it weights 80 g. A1 = half a square meter = 40 g A2 = quarter square meter = 20 g A3 = eighth square meter = 10 g A4 = sixteenth square meter = 5 g
So if your country ups the postage after 30 g you know you can put five pieces of paper into a 5 g envelope and pay only basic postage. Carleton -----Original Message----- From: owner-u...@colostate.edu [mailto:owner-u...@colostate.edu] On Behalf Of Pierre Abbat Sent: Friday, June 14, 2013 20:17 To: U.S. Metric Association Subject: [USMA:52931] Re: (Off Topic) Paper size ratios On Friday, June 14, 2013 17:51:28 James Frysinger wrote: > But we also know that the "A" series is no more SI-based than my > Great-Aunt Penelope's petunia patch. So, this is indeed an off-topic > email. Apologies given, if you feel you deserve them. Grin. An A0 sheet is one square meter (minus 51 mm², which is easy to add back by changing the temperature and humidity). A B0 sheet is 1 m on a side. Pierre -- lo ponse be lo mruli ku po'o cu ga'ezga roda lo ka dinko
