In Agricultural and Grounds Maintenance Equipment, agricultural engineering expert witness Richard L. Parish, PhD, PE, writes:
It is easier to find current standards than obsolete versions. An agricultural engineering expert may have to do some digging to find the correct version of a standard. Furthermore, obtaining copies of obsolete standards is sometimes difficult since some professional engineering societies do not provide/sell obsolete versions of standards. These older versions, as well as current versions, are usually available from IHS Global (http://www.global.ihs.com). An attorney or expert will often have a choice of buying a hard copy of a standard or opting for electronic delivery. It is necessary to pay for most standards (from any source), and the cost per page can be fairly steep.
Government Standards


