规定尺寸、公差、测量载荷和最小断裂载荷，以及适用于各种条件下机械传动和输送应用的链条的齿隙形式和相关链轮轮缘轮廓。还规定了14种类型的附件。链条尺寸确保了链条各个链环的完全互换性。

Lays down dimensions, tolerances, measuring loads and minimum breaking loads, together with the tooth gap forms and rim profiles of the associated chain wheels for these chains suitable for the mechanical transmission of power and conveying applications under a variety of conditions. Fourteen types of attachments are also laid down. The chain dimensions ensure complete interchangeability of individual links of chain.