Actually, there are bases for "20 lb" etc. but they are deeply hidden in history of the the paper business. Mostly, they seem to be based on a "ream" or some other such measure.
M F Moon ------ Original Message ------ Received: Wed, 24 Aug 2005 10:00:37 AM PDT From: "Daniel" <[EMAIL PROTECTED]> To: "U.S. Metric Association" <[email protected]> Subject: [USMA:34050] Re: Specification of paper In SI terms, the specification is a mass density; that is so many grams per square meter of paper. But in English, it is just a weight. Where is the area the weight is distributed over? Is it 24 lb per square yard or square foot or inch or what? Or does the pounds not relate to anything and are just trade sizes? Dan ----- Original Message ----- From: "Bill Potts" <[EMAIL PROTECTED]> To: "U.S. Metric Association" <[email protected]> Sent: Wednesday, 2005-08-24 00:15 Subject: [USMA:34032] Re: Specification of paper > Just a small note. > > I regularly buy HP LaserJet paper. Although it gives the "24 lb" > specification, with the metric equivalent in parentheses, the latter is in > the correct form, namely 90 g/m². (That's a superscripted 2 after the m, > in > case we have incompatible encoding.) They do omit the space, though. > > Bill Potts, CMS > Roseville, CA > http://metric1.org [SI Navigator] > > >>-----Original Message----- >>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >>Behalf Of Remek Kocz >>Sent: Tuesday, August 23, 2005 19:22 >>To: U.S. Metric Association >>Subject: [USMA:34027] Re: Specification of paper >> >> >>Bravo Pat! I have to say, that I really applaud your untiring efforts >>to promote the metric system and its _proper_ usage. I suppose that >>in the overwhelmingly metric Australia, the challenge is a little bit >>easier than here in the US, where things are just the opposite. I >>suppose though, that obstinacy and ingrained habits, are incredibly >>hard to fight, no matter where in the world one finds himself. >> >>Remek >> > > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.338 / Virus Database: 267.10.15/80 - Release Date: 2005-08-23 > >
