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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 30 - Mineral Resources |
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Chapter I - Mine Safety and Health Administration, Department of Labor |
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SubChapter K - Metal and Nonmetal Mine Safety and Health |
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Part 56 - Safety and Health Standards - Surface Metal and Nonmetal Mines |
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Subpart L - Compressed Air and Boilers |
§ 56.13021 - High-pressure hose connections.
Latest version.
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§ 56.13021 High-pressure hose connections.
Except where automatic shutoff valves are used, safety chains or other suitable locking devices shall be used at connections to machines of high-pressure hose lines of 3⁄4-inch inside diameter or larger, and between high-pressure hose lines of 3⁄4-inch inside diameter or larger, where a connection failure would create a hazard.