The loads, speeds, inflations, and rim configurations are assumed to be within acceptable industry or manufacturer's prescribed recommendations.
Other application parameters affecting tires are not included in the scope (for example: floating, 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 to tires are not included in the scope.
The formula (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. See SAE J751 for service codes.