This standard BS 3594-2:1965 Specification for pipe wrenches is classified in these ICS categories:
25.140.30 Hand-operated tools
This British Standard relates to the dimensions, quality, finish, testing and marking of pipe wrenches of the Footprint type as illustrated in Figure 1 in nominal sizes as follows:
6 in; 7 in; 9 in; 12 in and 14 inch.
Materials, heat treatment and hardness, manufacture, dimensions and maximum safe capacities, finish, marking and testing.