SAE J1113-25 is a further part of the same multi-part North American standard as the part listed separately on this site, and the parts are intended to be read as a set: a supplier receives the numbers of the parts that the vehicle manufacturer's specification invokes, and between them they define the measurement methods by which the components of the vehicle are assessed. Two practical points about a series of this kind are worth stating. The first is that the method and the limit are separated, so that the level at which a component is tested comes from the specification rather than from the part number. The second is that the parts have been revised and in some cases renumbered over the life of the series, so a report produced several years ago may reference a part that no longer carries the same subject.