Code of Federal Regulations (Last Updated: November 8, 2024) |
Title 30 - Mineral Resources |
Chapter I - Mine Safety and Health Administration, Department of Labor |
SubChapter K - Metal and Nonmetal Mine Safety and Health |
Part 57 - Safety and Health Standards - Underground Metal and Nonmetal Mines |
Subpart F - Drilling and Rotary Jet Piercing |
Rotary Jet Piercing - Surface Only |
§ 57.7807 - Flushing the combustion chamber.
Latest version.
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§ 57.7807 Flushing the combustion chamber.
The combustion chamber of a jet drill stem which has been sitting unoperated in a drill hole shall be flushed with a suitable solvent after the stem is pulled up.