ISO 10907-1:2008规定了用于安装模具（见图1）的定位环的基本尺寸和公差（单位:毫米），无隔热板，适用于尺寸为E12（根据EUROMAP 2）、A型（带孔）和B型（无孔）的注塑机。 它还提供了材料指南和硬度要求，并规定了符合其规范的定位环的名称。

ISO 10907-1:2008 specifies the basic dimensions and tolerances, in millimetres, of locating rings for mounting of moulds (see Figure 1) without thermal insulating sheets, suitable for injection moulding machines up to size E12 (according to EUROMAP 2), type A (with bore) and type B (without bore). It also gives material guidelines and hardness requirements, and specifies the designation of locating rings that are in accordance with its specifications.