My interest in it is to be able to find a root source of information. Canada - Weights and Measures Act 1970-71-72 http://laws.justice.gc.ca/en/W-6/101836.html
Ireland - Metrology Act 1996: http://193.120.124.98/gen531996a.html UK - Units of Measurement Regulations 1995: www.hmso.gov.uk/si/si1995/Uksi_19951804_en_2.htm However, in the case of the US, I kept seeing different definitions in many different legal instruments e.g. UPLR, FPLA, Handbook 130, FS 376. I don't understand why they put definitions 'on the face of' (as UK parliamentarians say) several acts. Actually, I do understand why they do it, I just think that they are wrong to make that choice. I simply wanted a single US legal source for the basic non-metric definitions as I can with Canada, Ireland, and UK. It could have 42 decimal places for all I care, as long as it is the definitive legal definition. -- Terry Simpson Human Factors Consultant [EMAIL PROTECTED] www.connected-systems.com Phone: +44 7850 511794 > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of Joseph B. Reid > Sent: 07 March 2003 14:30 > To: U.S. Metric Association > Subject: [USMA:25054] Re: USMA digest 1201 > > Carl Sorenson wrote in USMA 25051 > > >I believe that in 1959 the liter was still defined to be the volume of a > >kilogram of pure water at its highest density. The liter was therefore > >different from a cubic decimeter by about 28 parts per million. If you > want > >to be this precise, a gallon was 3 785.434 497 cm^3 but not 3 785.434 497 > >mL. > > > >Personally, I don't really care a whole lot, since this has not one shred > of > >influence on my day-to-day life, but I know that this list has a lot of > >people who like numbers with twelve decimal places. > > > >Carl > > > > Quite right. In 1901 the Conf�rence G�n�rale des Poids et Mesures > decided that the litre was the volume of a kilogram of water. In 1960 > the CGPM redefined the litre as exactly one cubic decimetre. This > reduced its size by 28 parts in 10^6. For that reason be cautious > about the meaning of litre in papers written between 1901 and 1960.
