This part of ISO 10907 specifies the basic dimensions and tolerances, in millimetres, of locating rings, for the mounting of moulds (see Figure 1) with thermal insulating sheets, suitable for injection moulding machines up to size E12, in accordance with EUROMAP 2, types C (with bore) and D (without bore). It also gives material guidelines and hardness requirements, and specifies the designation of the locating rings that conform to it.