Ralph, Your point can not be denied. There are no US official or professional society documents which define "inch-pound units" as a *system* of units (i.e. which defines a unique coherent unit for every quantity encountered in engineering practice).
Only the SI is a *system* of units which has properties of uniqueness, coherence, and completeness! Please continue pressing this point with contractors serving the FHA. Gene Mechtly, College of Engineering University of Illinois at Urbana-Champaign .......................................... Ralph wrote: > In trying to promote the specification of SI in standards, I've made > the point that if non-SI units are used, then a standard document > should be referenced which defines the system and its use. Since such > documents don't seem to exist, I then want to make the point that an > engineering system of units needs to be specified, not just a vague term > such as "inch-pound units." > > Ralph Gillmann > Federal Highway Administration
