起重用短环链 T级（T、DAT和DT型），高精度葫芦链

[中文适用范围]： 本标准规定了手动葫芦或动力驱动环链葫芦用T级(T、DAT和DT型)高精度葫芦链的要求”。 本标准适用于名义尺寸范围为3 mm～22 mm的圆钢电焊短环链，其热处理和试验按GB／T 20946 规定的验收总则。 注：DAT或DT型以外的T型链条，不仅可用于环链葫芦，也可用于其他起重设备。手动葫芦专用的TH和VH 级链条将在其他标准中规定。 [外文原描述]： This International Standard specifies requirements for fine-tolerance hoist chain of Grade T (types T, DAT and DT) for use with manually operated or power-driven chain hoists1). It is applicable to electrically welded, round, steel short-link chain, heat-treated and tested in accordance with the general conditions of acceptance of ISO 1834, in the nominal chain size range from 3 mm to 22 mm. NOTE Type T chain, but not type DAT or DT, may be used in lifting equipment other than chain hoists. Chain of grades TH and VH, intended specifically for use in hand-operated hoists, will be the subject of future International Standards.