Standard Interpretations - Table of Contents|
| Standard Number:||1926.303(d)|
July 22, 2010
(d) . . . All abrasive wheels and tools used by employees shall meet . . . applicable requirements of American National Standards Institute, B7.1-1970, Safety Code for the Use, Care and Protection of Abrasive Wheels.
ANSI B7.1-1970 provides, in relevant part:
9.9 Side Grinding. Side grinding shall only be performed with wheels designed for this purpose.
Grinding a bevel onto the end of a cut ductile iron pipe is side grinding, because the cutting is taking place perpendicular to the cut surface. Wheels on cut-off saws are not designed for side grinding (or lateral pressure); they are constructed for radial pressure only. Indeed, you indicate in your letter that blade manufacturers specifically warn against use of the cut-off saw in the manner you describe. Thus, using a cut-off saw to grind a bevel onto the end of a cut ductile iron pipe is contrary to ANSI B7.1-1970 and prohibited by 29 C.F.R. 1926.303(d).
Arizona Division of Occupational Safety and Health
If you need further clarification on this subject, please contact us by fax at: U.S. Department of Labor, Directorate of Construction, Office of Construction Standards and Guidance, fax # 202-693-1689. You can also contact us by mail at the above office, Room N3468, 200 Constitution Avenue, N.W., Washington, D.C. 20210, although there will be a delay in our receiving correspondence by mail.
|Standard Interpretations - Table of Contents|
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