ASME B107.43-2002 pdf free download.WOOD-8PLITTING WEDGES.
ASME B107.43 provides pcrformance and safcty re quircmcnts for splitting wedges that arc used spccifically for splitting wood. it is intended to serve as a guide in sclccting, 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 in safe practices.
This Standard may be used as a guide by staic authorities or other regulatory bodies in the formulation of laws or regulations. It is also intended for voluntary use by establishments that use or manufacturc thc tools covered. The methods employed to ensure compliancc with this Standard shall be determined by the proper regulatory or administrative authority.
Thc following documents form a pan of this Standard to ibc extent specified herein. Al the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this American National Standard are encouraged to investigate the possibility of applying the most rcccnt editions of the documents indicated below. Copics of the publications may he obtained from publishers as indicated.
ANSI Z87.l-1998, Practice for Occupational Educational Eye and Face Protection
ANSI Z535.4-1998, Product Safety Signs and Labels
Publisher: American National Standards Institute (ANSI), 25 West 43rd Street, New York, NY 10036
ASTM E 18-00, Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials
Publisher: American Socicty for Testing and Materials (ASTM), 100 Barr Harbor Drive, West Conshohocken, PA 19428
Guide to Hand Tools — Selection, Safety Tips, Proper Usc, and Carc
Publisher: Hand Tools Institute (HT1), 25 North Broadway, Tarrytown, NY 10591
See Figs.. 1, 2, and 3 as applicable.
bevel: thc angular portion of the wedge adjacent to thc splitting edge and extending to the taper.
chamfer: the angled flat surface or cquivalcnr radius of the wedge encircling thc perimeter of the struck face.
equivalent. the word equivakni in this Standard shall be intcrprctcd to mean alternate designs or features that will provide an equal degree of safcty.
guide grooves or wings: when providcd, the long, narrow impressions or protrusions locatcd on opposite sides of thc tapcr.
hardness: the condition of the wedge resulting from heat trcatment.
heads the portion of the wedge between the struck face and the taper.
safety message: the information imprinted on or affixed to the wedge that is intended to promote safety.
shall and should: mandatory requirements of this Stan dard are characterized by the word shall. If a provision is of an advisory nature, it is indicated by the word should, or is stated as a recommendation.
spli#ing edge: the edge formed by the bevel directly opposite the struck face.
struck face: the portion of the wedge located adjacent to the head directly oppositc the splitting edge.
taper: the portion of the wedge with a gradually reducing cross-sectional area, located between the head and the bevel.
Many tests required herein are inherently hazardous, and adequate safeguards for personnel and property shall be employed in conducting such tests.
Separate (new) wedges shall be used for each test. Failure to meet the rcquircmcnts of cither test indicates that the wedges do not comply with this Standard.
5.1 Hardness Determination Test
Hardness dcLcrmination shall be made on a fixtured wood-splitting wcdge or on a mounted or unmounted spairncn that has becn cut from the tool using the wet abrasive or other cquivalcnt method. Any hardness test will be acceptable that uscs cquipmcnt and methods cquivalcnt to Rockwell hardness determination as speci. fled in ASTM E18.
5.2 Struck Face Test
The wedge shall be vertically mounted and supported with the splitting edge resisting directly on a mild steci plate of not less than 0.75 in. (19.1 mm) thickness. The steel plate shall 1w rigidly supported on an anvil or other similar device of sufficient mass to resist deflection. Prior to conducting this test, care should be taken to blunt the splitting edge to ensure that the impact energy is not czpcndcd in deformation of the splitting edge.