ASME B107.410 pdf download

ASME B107.410 pdf download.Struck Tools.
ASME B107.410 provides performance and safety requirements for glaziers’ chisels, wood chisels, ripping chisels, and flooring/electricians’ chisels. Glaziers’ chisels are intended for installing and removing putty around window panes and for general wood chisel work relating to glazing. Wood chisels are intended for making rough and finish cuts in wood. Ripping and flooring/electricians’ chisels are intended for use in cutting wood and light prying, such as cutting the tongue of installed flooring sections and raising and removing floor planks. It is intended to serve as a guide in selecting, testing, and using the hand tools covered. It is not the purpose of this Standard to specify the details of manufacturing.
This Standard is also meant to serve as a guide in developing manuals and posters, and for training personnel to work safely.
This Standard may be used as a guide by state authorities or other regulatory bodies in the formulation of laws or regulations. It is also intended for voluntary use by establishments that use or manufacture the tools covered. The methods employed to ensure compliance with this Standard shall be determined by the proper regulatory or administrative authority.
2 DEFiNITIONS
See Figs. 1, 2, 3, 4, and 5 as applicable.
bevel: the angular or curved portion of the chisel adjacent to the cutting edge extending to the blade or taper.
blade: the portion of the glaziers’ or wood chisel opposite the struck face used for cutting.
bedy: on glaziers’ and wood chisels, the metal portion of the chisel extending from the blade. On ripping and flooring/electricians’ chisels, the straight portion of the chisel between the chamfer and the taper.
chamfer: the angled flat surface or equivalent radius between the struck face and the body of the chisel encircling the perimeter of the struck face.
culling edge: the edge formed by the bevel directly opposite the struck face.
6.2.1 Brick Chisels. The brick chisel shall be mounted vertically with the cutting edge resting crosswise on the largest surface of a rectangular common brick having a minimum thickness of 2.0 in. and a width of at least 3.0 in.
The brick shall rest on a solid foundation that supports the entire brick surface, such as a block weighing not less than 10.0 lb. A steel weight of 5.0 lb and having a striking face hardness of 45 HRC to 60 HRC or equivalent shall be dropped 20 times from a height of 10.0 in. squarely onto the chisel struck face. The diameter of the striking face of the weight shall not be less than 0.375 in. larger than the struck face of the chisel. Typically the weight is cylindrical and is dropped through a seamless tube slightly larger than the diameter of the weight. The test brick shall be moved after each drop of the weight to make a new impression.
6.2.2 Brick Sets. The impact test for brick sets shall be the same as the test in para. 6.2.1, except that the weight shall be dropped 10 times.
6.2.3 Star Drills. The star drill shall be mounted vertically with the cutting edges resting on solid concrete. The struck face of the star drill shall be struck repeatedly by a hammer of the appropriate type and size (see para. 5.1(b)J until a hole of 0.5 in. ±0.1 in. in depth has been attained. The star drill should be rotated slightly after each successive hit. Three holes shall be drilled.
7 SAFETY REQUIREMENTS AND LIMITATiONS OF USE
(a) Brick chisels and brick sets are special-purpose tools designed, manufactured, and intended only for use in scoring and cutting brick and masonry block.
(b) Star drills are special-purpose tools designed and intended only for the drilling of holes in brick, tile, concrete, and stone.
(c) To avoid possible eye or other bodily injury, brick chisels and brick sets shall not be used to cut metal objects or concrete,
(d) A hammer blow should always be struck squarely with the hammer face parallel with the struck face of the brick chisel, brick set, or star drill. Glancing blows, overstrikes, and undersirikes should be avoided.