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Arizona Administrative Code (Last Updated: November 17, 2016) |
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Title 11. MINES |
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Chapter 1. STATE MINE INSPECTOR |
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Article 3. FIRE PREVENTION AND CONTROL |
Section R11-1-305. Tanks, pipes, other containers -- made safe before welding
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All tanks, pipes, or other containers which have held flammable, explosive or corrosive material shall be vented, cleaned, purged, and tested for safe and non-explosive atmosphere before entering, burning, cutting, or welding on them is permitted.