指定主要尺寸和一般要求。首选类型A1和A2适用于标称臂尺寸8 mm x 3 mm和9 mm x 3 mm。未指定的细节由制造商选择。附录A构成本标准不可分割的一部分。
Specifies the main dimensions and general requirements. The preferred types A1 and A2 are for nominal arm sizes 8 mm x 3 mm and 9mm x 3 mm. Details not specified are left to the manufacturer's choice. Annex A forms an integral part of this standard.