This SAE Standard establishes the procedures for the application of Ton Kilometer Per Hour (TKPH) rating values for off-the-road tires; utilizing empirical data formula@ it describes the procedure for evaluating and predicting off-the-road tire TKPH requirements as determined by a work cycle analysis. This document is applicable to only those tires used on earthmoving machines as defined in SAE J1057@ and contains machines referenced in SAE J1116. The loads@ speeds@ inflations@ and rim configurations are assumed to be within acceptable industry or manufacturers' prescribed recommendations. Other applicable parameters affecting tires are not included in the scope (for example: flotation@ cut@ bruise@ wear@ etc.). These parameters must also be considered for final tire selection@ since a tire that maximizes desirable TKPH characteristics will sometimes compromise these other parameters. The standards for the productivity of off-the-road machines or tires are not included in the scope. The formulae (4.2 and 4.3) are applicable to transport type machines only (that is@ trucks@ tractor trailers@ and scrapers) using Category E Earthmover Service Code Tires.