标准号:IS 6131-1980
发布日期:1980/8/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:Specifies technical requirements, such as minimum values for hardness and test torque for hand-operated wrenches (spanners) and sockets of the following series:Series A — Alloy steel ring wrenches (spanners), box wrenches (spanners) and tee wrenches (spanners)Series B — Carbon steel ring wrenches (spanners) and box wrenches (spanners)Series C — Alloy steel open jaw wrenches (spanners)Series D — Carbon steel open jaw wrenches (spanners)Series E— Hand-operated square-drive sockets.