On Wednesday 14 March 2007 23:43, Carleton MacDonald wrote: > A less onerous way to do the job would be just to pass legislation that > says that, after a certain date, no legal or commercial contract, written > or implied, is valid unless any units of measurement in the contract are > SI. Go ahead and use your old units, but they are not enforceable.
There are some other units that should be allowed: *Units of quantities for which there is no SI unit, such as the bit. *Some units which are SI units multiplied by a power of 1000, but which don't appear in the SI brochure: diopter, nit, tex. *The degree, and maybe minute and second, of arc, because the radian is an irrational fraction of a turn. *The minute, hour, day, and week, or at least the first three, which are in the SI brochure. *Possibly durometer readings. These can be converted to megapascals, but are normally quoted as the arbitrary number the durometer says. phma
