Southern Tank & Mfg. Co. has an experienced fabrication shop qualified to meet the following codes, standards, and specifications.
| AWWA D100 | American Water Works Association Standard for Welded Steel Tanks for Water Storage |
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| API 620 | American Petroleum Institute Standard 620: Recommended Rules for Design and Construction of Large, Welded, Low-Pressure Storage Tanks |
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| API 650 | American Petroleum Institute Standard 650: Welded Steel Tanks for Oil Storage |
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| API 12F | American Petroleum Institute Specification 12F: Shop-Welded Tanks for Storage of Production Liquids |
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| D.O.T. | Department of Transportation Certified for Truck Tank Repairs & Inspections |
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| NBIC "R" STAMP |
National Board Inspection Code Certified & Authorized to repair and/or alter boilers, pressure vessels, and other pressure-retaining items |
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| STI F911 | Steel Tank Institute Standard F911 for Diked Aboveground Storage Tanks |
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| STI F921 | Steel Tank Institute Standard F921 for Aboveground Tanks with Integral Secondary Containment |
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| STI F941 (Fireguard) | Steel Tank Institute Standard F941 for Fireguard Thermally Insulated Aboveground Storage Tanks |
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| STI ACT 100U | Steel Tank Institute Specification ACT-100-U for External Corrosion Protection of Composite Steel Underground Storage Tanks |
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| STI FLAMESHEILD | Steel Tank Institute Standard FLAMESHIELD for Aboveground Fire-Resistant Tanks |
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| STI P3 | Steel Tank Institute Specification STI-P3 for External Corrosion Protection of Underground Steel Storage Tanks |
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| UL 58 | Underwriter's Laboratories Standard for Safety UL 58, Steel Underground Tanks for Flammable and Combustible Liquids |
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| UL 80 | Underwriter's Laboratories Standard for Safety UL 80, Steel Tanks for Oil-Burner Fuel |
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| UL 142 | Underwriter's Laboratories Standard for Safety UL 142, Steel Aboveground Tanks for Flammable and Combustible Liquids |
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| UL 2085 | Underwriter's Laboratories Standard for SafetyUL 2085, Protected Aboveground Tanks for Flammable and Combustible Liquids |
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| UL 2244 | Underwriter's Laboratories Standard for Safety UL 2244, Aboveground Flammable Liquid Tank Systems |
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