On Fri, 8 Dec 2000 22:33:05 -0500, "Duncan Bath" <[EMAIL PROTECTED]> wrote: >IEEE/ASTM SI 10-1997 3.3.2.5 Energy >"The SI unit of energy , the joule, together with its multiples and >submultiples, is preferred for all applications. >The kilowatthour is widely used as a measure of electric energy. This unit >should not be introduced into any new fields, and eventually it should be >replaced. The unit to use is the megajoule. >Duncan The decision to use the kWh for gas was presumably done because it was the standard unit for electricity. It makes sense to have a common unit. However, electricity meters are still largely mechanical, so cannot display in joules. A conversion could be done on bills, of course. It should be noted that the standard above is, of course, a USA one. I don't think this is an area I would expend much energy (!) on; I'm just glad that new metres measure in m3 for gas, and it gets converted to MJ rather than therms! -- Chris KEENAN UK Metrication: http://www.metric.org.uk/ UK Correspondent, US Metric Association
